Adds icons to sidebar documentation and removes the link when you can't
interact with it.
I'm a little concerned that this won't be very accessible at the moment,
because we don't announce that anything has changed (i.e. there's no way
to find out that the text has changed if you can't see it), and the text
isn't labeled as describing anything. (this is being addressed in #7110
)

There's a few caveats to this:
1. we don't set a min height at the moment. I've avoided this because we
use the sidebar a number of other places and I wanted to touch as little
as possible. This means we can still get height adjustments
2. The new project icon doesn't have the same proportions as the mui
icons. This adds some additional jank. We should probably look at this,
though.
This PR adds the new CR diagram (with schedule info) conditionally.
It'll only render for users who are exposed to scheduled CRs.
It also updates the text of the old version to make it all consistent
and adds a `aria-details` attribute to the SVG so that assistive tech
knows what it is.
New version

This PR adds a splash screen for segments being open-sourced.
It looks like this:

## About the changes
I've more or less wholesale copied the demo dialog that @nunogois
implemented. I've put it in the `splash` directory for now (because
that's where it seemed most appropriate). The reason for straight
copying it instead of extending existing functionality is primarily that
this should be short-lived and deleted after the next release or so. So
isolating all the changes into a single directory seems like a good
idea.
## Discussion points
Because OSS installations don't connect to Unleash, we can't use feature
flags to control the rollout here. Instead, we must just assume that OSS
users will want to see it. If there is a better way we can control this,
that'd be great. I'd love to be able to use time constraints to not show
this after a certain date, for instance, but I don't think that's
something we can do right now?
The splash is also set to display on any page you're at when you first
load unleash. However, closing the dialog (either by closing or by
asking to see segments) will store that in localstorage, and you won't
be shown the dialog again.
---------
Co-authored-by: Nuno Góis <github@nunogois.com>
Fix issues uncovered when reviewing integrations list and form.
- YouTube CSP
- Text content and formatting
- Margins
- Update old integration icons
- Fix headers in dark theme
## About the changes
Creating the first version of the Dark theme
Refactor: colors variables
Refactor: use theme variable instead
- this change will help us to use MuiCssBaseline, and we can use classes
directly for easy customization when we can't identify MUI classes
Refactor: adjusting some files components
- i’ve touched also the structure of some files, not only the colors
variables (but only to adjust the style, not functionality)
Fix: dark mode persistence on refresh (by Nuno)
Feat: dark mode sees light logos, and light mode sees dark logos (by
Nuno)
---------
Co-authored-by: Nuno Góis <github@nunogois.com>
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Add pro feature icon to oss projects.
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Signed-off-by: andreas-unleash <andreas@getunleash.ai>
* 4.9.0-beta.1
* 4.9.0-beta.2
* fix: mobile guidance WIP
* fix: add autofocus
* feat: update forms
* refactor: mobile guidance
* fix: add relative as common class
* fix: add max height to codebox