Addresses and removes all leftover comments related to the flag overview
redesign flag.
There's four changes here:
1. Remove release plan milestone strategy and environment footer.
Dangling files, no references.
2. Delete old code without references in theme.ts
3. Delete legacy playground result chip. Replace all references to it
with references to the new chip. The API is the exact same and the
legacy chip was just passing through everything to the new chip anyway,
so nothing should change.
4. Remove a now-redundant way to supply a default
We're migrating to ESM, which will allow us to import the latest
versions of our dependencies.
Co-Authored-By: Christopher Kolstad <chriswk@getunleash.io>
Gives a small update in how we deal with unevaluated and disabled
strategies in the new playground design:
- "Unevaluated" badges go from yellow warning to blue info and their
text changed to "Not evaluated"
- Don't show "Not evaluated" badges on strategies that are disabled.
To avoid this change affecting the current playground setup, I
duplicated the old resultschip into a legacy file and changed the
existing impl. To avoid updating all other files that use that chip
(it's all over the playground) and checking flags or creating duplicates
there, I decided to do a quick check at the top of the legacy file and
use the new file if the flag is on.
In doing so, I've also simplified the actual chip file and have more or
less cut the total line count in it in two 😄

This is both more correct in terms of what it does and also fixes an
issue where you couldn't navigate to the diff preview with the
keyboard previously.
It looks exactly the same as before except there's an additional
paddingless button when you hover/focus it.
<!-- Thanks for creating a PR! To make it easier for reviewers and
everyone else to understand what your changes relate to, please add some
relevant content to the headings below. Feel free to ignore or delete
sections that you don't think are relevant. Thank you! ❤️ -->
Implements the Advanced Playground Table
## About the changes
<!-- Describe the changes introduced. What are they and why are they
being introduced? Feel free to also add screenshots or steps to view the
changes if they're visual. -->
<!-- Does it close an issue? Multiple? -->
Closes #
[1-1007](https://linear.app/unleash/issue/1-1007/env-aware-results-table)
<!-- (For internal contributors): Does it relate to an issue on public
roadmap? -->
<!--
Relates to [roadmap](https://github.com/orgs/Unleash/projects/10) item:
#
-->
### Important files
<!-- PRs can contain a lot of changes, but not all changes are equally
important. Where should a reviewer start looking to get an overview of
the changes? Are any files particularly important? -->

---------
Signed-off-by: andreas-unleash <andreas@getunleash.ai>