## Problem
There's still more unused code in the repository which slows down
everything:
- checkouts
- tooling
- probably builds (not sure how good turbopack is at handling this)
## Solution
- remove old unused code
- remove more recent code after checking git history to ensure it's not
unfinished/ongoing work
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **Chores**
* Removed several unused interface, onboarding, and helper components
from the studio app.
* Cleaned up outdated branching, integrations, query performance,
support, and table/grid UI elements.
* Removed a few unused utility hooks and key-mapping logic.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Gildas Garcia
f34aa108d5