change request help popover (#2388)

## About the changes
<img width="667" alt="image"
src="https://user-images.githubusercontent.com/2625371/201094916-52d9de4e-36a5-4c1e-894d-b9cb2296f612.png">

frontend/src/component/project/Project/ProjectSettings/ChangeRequestConfiguration/ChangeRequestConfiguration.tsx

@@ -16,11 +16,12 @@ import PermissionSwitch from 'component/common/PermissionSwitch/PermissionSwitch
 import { useRequiredPathParam } from 'hooks/useRequiredPathParam';
 import { Dialogue } from 'component/common/Dialogue/Dialogue';
 import { ConditionallyRender } from 'component/common/ConditionallyRender/ConditionallyRender';
-import { useChangeRequestConfig } from '../../../../../hooks/api/getters/useChangeRequestConfig/useChangeRequestConfig';
-import { useChangeRequestApi } from '../../../../../hooks/api/actions/useChangeRequestApi/useChangeRequestApi';
+import { useChangeRequestConfig } from 'hooks/api/getters/useChangeRequestConfig/useChangeRequestConfig';
+import { useChangeRequestApi } from 'hooks/api/actions/useChangeRequestApi/useChangeRequestApi';
 import { UPDATE_PROJECT } from '@server/types/permissions';
-import useToast from '../../../../../hooks/useToast';
-import { formatUnknownError } from '../../../../../utils/formatUnknownError';
+import useToast from 'hooks/useToast';
+import { formatUnknownError } from 'utils/formatUnknownError';
+import { ChangeRequestProcessHelp } from './ChangeRequestProcessHelp/ChangeRequestProcessHelp';
 
 export const ChangeRequestConfiguration: VFC = () => {
     const [dialogState, setDialogState] = useState<{
@@ -130,7 +131,12 @@ export const ChangeRequestConfiguration: VFC = () => {
         );
     return (
         <PageContent
-            header={<PageHeader titleElement="Change request configuration" />}
+            header={
+                <PageHeader
+                    titleElement="Change request configuration"
+                    actions={<ChangeRequestProcessHelp />}
+                />
+            }
             isLoading={loading}
         >
             <Alert severity="info" sx={{ mb: 3 }}>

frontend/src/component/project/Project/ProjectSettings/ChangeRequestConfiguration/ChangeRequestProcessHelp/ChangeRequestProcessHelp.tsx

@@ -0,0 +1,94 @@
+import { useRef, useState, VFC } from 'react';
+import {
+    useTheme,
+    IconButton,
+    Typography,
+    useMediaQuery,
+    Popover,
+    Box,
+} from '@mui/material';
+import { ConditionallyRender } from 'component/common/ConditionallyRender/ConditionallyRender';
+import { HelpOutline } from '@mui/icons-material';
+import { ReactComponent as ChangeRequestProcessImage } from 'assets/img/changeRequestProcess.svg';
+
+interface IChangeRequestProcessHelpProps {}
+
+export const ChangeRequestProcessHelp: VFC<
+    IChangeRequestProcessHelpProps
+> = () => {
+    const ref = useRef<HTMLButtonElement>(null);
+    const theme = useTheme();
+    const isSmallScreen = useMediaQuery(theme.breakpoints.down('md'));
+    const [isOpen, setIsOpen] = useState(false);
+
+    return (
+        <>
+            <ConditionallyRender
+                condition={!isSmallScreen}
+                show={
+                    <Typography variant="body2">
+                        Show change request process{' '}
+                    </Typography>
+                }
+            />
+            <IconButton title="Change request process" ref={ref}>
+                <HelpOutline onClick={() => setIsOpen(true)} />
+            </IconButton>
+            <Popover
+                open={isOpen}
+                anchorEl={ref.current}
+                anchorOrigin={{
+                    vertical: 'bottom',
+                    horizontal: 'right',
+                }}
+                transformOrigin={{
+                    vertical: 'top',
+                    horizontal: 'right',
+                }}
+                onClose={() => setIsOpen(false)}
+            >
+                <Box sx={{ p: { xs: 2, md: 4 }, maxWidth: 920 }}>
+                    <Typography variant="h3">
+                        Change request process:
+                    </Typography>
+                    <Typography variant="body2">
+                        <ol>
+                            <li>
+                                When changes are detected they are added into a
+                                draft mode
+                            </li>
+                            <li>
+                                The next step is for those changes to be sent
+                                for review
+                            </li>
+                            <li>
+                                These changes can be seen by everyone but only
+                                who has <strong>“Review change request”</strong>{' '}
+                                permission can Approve or Reject them
+                            </li>
+                            <ul>
+                                <li>
+                                    If changes are Approved then someone who has
+                                    <strong>“Apply change request”</strong>{' '}
+                                    permission needs to apply these changes to
+                                    be live on the feature toggles and request
+                                    is Closed
+                                </li>
+                                <li>
+                                    If changes are Rejected then these goes
+                                    automatically to Cancelled and request is
+                                    Closed.
+                                </li>
+                            </ul>
+                        </ol>
+                    </Typography>
+                    <Box sx={{ mt: 3 }}>
+                        <ChangeRequestProcessImage
+                            style={{ maxWidth: 'calc(100vw - 4rem)' }}
+                        />
+                    </Box>
+                </Box>
+            </Popover>
+        </>
+    );
+};

frontend/src/component/project/ProjectAccess/ProjectAccessTable/ProjectAccessTable.tsx

@@ -1,4 +1,4 @@
-import { useEffect, useMemo, useState, VFC } from 'react';
+import { useCallback, useEffect, useMemo, useState, VFC } from 'react';
 import { SortingRule, useFlexLayout, useSortBy, useTable } from 'react-table';
 import { VirtualizedTable, TablePlaceholder } from 'component/common/Table';
 import { styled, useMediaQuery, useTheme } from '@mui/material';
@@ -15,6 +15,7 @@ import { ActionCell } from 'component/common/Table/cells/ActionCell/ActionCell';
 import { SearchHighlightProvider } from 'component/common/Table/SearchHighlightContext/SearchHighlightContext';
 import { ConditionallyRender } from 'component/common/ConditionallyRender/ConditionallyRender';
 import { useSearch } from 'hooks/useSearch';
+import useHiddenColumns from 'hooks/useHiddenColumns';
 import {
     Link,
     Route,
@@ -42,7 +43,6 @@ import ResponsiveButton from 'component/common/ResponsiveButton/ResponsiveButton
 import { ProjectAccessCreate } from 'component/project/ProjectAccess/ProjectAccessCreate/ProjectAccessCreate';
 import { ProjectAccessEditUser } from 'component/project/ProjectAccess/ProjectAccessEditUser/ProjectAccessEditUser';
 import { ProjectAccessEditGroup } from 'component/project/ProjectAccess/ProjectAccessEditGroup/ProjectAccessEditGroup';
-import useHiddenColumns from 'hooks/useHiddenColumns';
 import { ProjectAccessRoleCell } from './ProjectAccessRoleCell/ProjectAccessRoleCell';
 import {
     PA_ASSIGN_BUTTON_ID,
@@ -71,6 +71,7 @@ const StyledUserAvatars = styled('div')(({ theme }) => ({
 const StyledEmptyAvatar = styled(UserAvatar)(({ theme }) => ({
     marginRight: theme.spacing(-3.5),
 }));
+
 const StyledGroupAvatar = styled(UserAvatar)(({ theme }) => ({
     outline: `${theme.spacing(0.25)} solid ${theme.palette.background.paper}`,
 }));
@@ -133,10 +134,17 @@ export const ProjectAccessTable: VFC = () => {
                                 subtitle={`${row.entity.users?.length} users`}
                             />
                         }
-                        elseShow={<HighlightCell value={value} />}
+                        elseShow={
+                            <HighlightCell
+                                value={value}
+                                subtitle={
+                                    row.entity?.username || row.entity?.email
+                                }
+                            />
+                        }
                     />
                 ),
-                maxWidth: 125,
+                minWidth: 100,
                 searchable: true,
             },
             {