Implements the first step towards implementing the new design for
constraint editing. All the edit functionalities work as and when you do
them now, but there is no validation of the values you put in that's
happening.
The inverted / not inverted button and the case sensitivity button are
placeholders. They should use icons and have proper descriptions of what
they do. I'll do that in a follow-up.
The way to enter values is currently always in the section below the
main controls. Again, more work on this is coming.
Current look:
With case sensitive options:
<img width="769" alt="image"
src="https://github.com/user-attachments/assets/bfdfbac1-cc95-4f26-bf83-277bae839518"
/>
With legal values:
<img width="772" alt="image"
src="https://github.com/user-attachments/assets/14f566cc-d02a-46dd-b433-f8b13ee55bcc"
/>
If you try to visit an archived flag, you're told you can find it on the
project archive page, but that page isn't visible by default anymore.
This is an update to take you to the project overview with a filter for
archived flags instead.
This PR creates/steals the logic and basic components that we need for
the new constraint editing design and shows it instead of the old one if
the flag is on.
The interface needs a lot of work, but this essentially wires everything
up so that it works with the API on direct editing:
<img width="781" alt="image"
src="https://github.com/user-attachments/assets/97489a08-5f12-47ee-98b3-aefc0b840a2b"
/>
Additionally the code here will need a lot of refactoring. This is a
first draft where I've yanked all the constraint editing logic out of a
nested hierarchy of components that handle validation and lots more. I
expect to clean this up significantly before finishing it up, so please
excuse the mess it's currently in. It turns out to have been lots and
lots more logic than I had anticipated.
This is just a PR to get started, so that the next one will be easier to
work on.
Adds focus styles to the env accordion header only when the focus is on
the header itself (not on the env toggle inside the header). The focus
style is consistent with what we do for other accordions (dashboard,
milestones).
Middle one is focused:

Focus is on the toggle inside the top one (yeh, we should have better
focus styles for toggles; but that's not for now):

Open and focused:

Getting the consistent background for the header when it's open is a
little tricky because the accordion container and summary are split into
different files. ~~This first iteration used a class name for the
specific header (because envs can have multiple accordion headers inside
them, e.g. release plans) and setting a CSS variable in the summary, so
that the background matches.~~ I found out that I only need to set it in
the parent anyway 😄
Without it, you get this (notice that there is a little white outside
the lower corners):

Makes two small changes to the release template UI based on walkthrough
feedback with UX
1) The how-to descriptions for creating release plans won't get hidden
when the user has created release plans. We think too much is better
than too little. At a later point we'll push users to documentation more
aggressively
2) The warning for when the user taps the "Use template" button now has
a line break to give it some breathing room and will render anchored to
the bottom left of the originating button rather than covering it
Implements the drag-n-drop tooltip the first time the user sees a
strategy drag handle on the feature env overview. It uses React Joyride,
which is the same system we use for the demo.
The design is a little different from the sketches because I couldn't
find a quick way to move the content (and the arrow) to be shifted
correctly.
If the demo is also active the first time a user visits a strategy page,
it'll render both the demo steps and this, but this tooltip doesn't
prevent the user from finishing the tour. It might be possible to avoid
that through checking state in localstorage, but I'd like to get this
approved first.
The tooltip uses the auth splash system to decide whether to show the
tooltip, meaning it's stored per user in the DB. To avoid it
re-rendering before you refetch from the back end, we also use a
temporary variable to check whether the user has closed it.
Rendered:

If the tour is also active:

Fixes janky drag and drop behavior and updates the styling of the drag
handle focus.
The solution uses the same method to prevent oscillation as we do for
strategies. To get access to the same context, I've added some extra
parameters to the OnMoveItem function and passed along the extra data
from the `useDragItem` hook. No new information, just making more of it
available, and turning it into an object so that you can declare the
properties you need (and get rid of potential wrong ordering of
drag/drop indices).
For the drag and drop behavior: If the dragged element is the same size
or smaller than the element you're dragging over, they will swap places
as soon as you enter that space. If the target element is larger,
however, they won't swap until you reach the drag/drop handle, even if
they could theoretically switch somewhere in the middle. This appears to
be a limitation of how the drag/drop event system works. New drag events
are only fired when you "dragenter" a new element, so it never fires
anywhere in the middle. Technically, we could insert more empty spans
inside the drag handle to trigger more events, but I wanna hold off on
that because it doesn't sound great.
When dragging, only the handle is visible; the rest of the card stays in
place. For strategies, we show a "ghost" version of the config you're
dragging. However, if you apply the drag handle to the card itself, all
of it becomes draggable, but you can no longer select the text inside
it, which is unfortunate. Strategies do solev this, though, but I
haven't been able to figure out why. If you know, please share!
Before:

After:

Extracts the shared strategy list and list item into the `common` folder
instead of living in the environment accordion body file.
Also takes the disabled strategy handling that we use for
`StrategySeparator` and moves it into the file itself. It might be
something we want to decorate manually in the future, but we don't for
now, so this was the most straight-forward way to make it work.
Makes it so that strategies project env strategies that aren't draggable
don't get the drag icon. The reason it didn't work as expected was that
we used fallback functions instead of keeping them undefined.
I discovered that we applied two dragging boxes, so I removed the outer
layer one (specific to project envs) in favor of relying on the inner
one. Most of the lines changed are just indentation as a result of this
nesting going away.
Here's the diff. The top set of strategies aren't draggable; the lower
ones are.

Flattens the list of strategies when you have both release plans and
strategies. If you had both, you'd have this setup before:
```
- ol
- li // release plan
- ol // release plan strategies
- li // regular strategies
- ol // strategy list
```
Now we drop the extra nesting:
```
- ol
- li // release plan
- ol // release plan strategies
- li // the rest of the strategies
```
Semantically, I think this is just as valid and it simplifies a lot of
styling that no longer needs to look for other lists etc.
As part of doing this, I have also moved the "many strategies" warnings
and pagination labels to outside the list instead of inside the smaller
list.
Otherwise, the list looks just the same as before and drag-n-drop works
just fine.
(side note: these strategies shouldn't have drag handles 🤔 )

As a bonus, this PR also:
- Uses the disabled style separator for disabled strats in playground
and deletes some unused components I found.
Playground disabled strats (we probably don't want double orange badges;
I'll talk to UX):
