- Replaces #1870, which replaced #1682, #1677
This mostly uses the code from there and addresses the comments I've
left. I didn't change the code much.
## Launch Checklist
Makes the sidebar panel resizable
<img width="707" height="511" alt="image"
src="https://github.com/user-attachments/assets/d010df38-faac-441c-bf7f-a4960e471c61"
/>
- [x] Briefly describe the changes in this PR.
- [x] Link to related issues.
- [x] Include before/after visuals or gifs if this PR includes visual
changes.
- [x] Write tests for all new functionality.
- [x] Add an entry to `CHANGELOG.md` under the `## main` section.
---------
Co-authored-by: Bart Louwers <bart.louwers@gmail.com>
