feat(ux): improve sidebar ergonomics

[glhrmv]

The "Types" part of the sidebar could use some UX and ergonomic improvements. I've made a few changes, let me know what you think.

Added

• Added "Delete type" option to the right-click context menu, integrated with the existing confirm-delete dialog and useDeleteActions hook, to give the user an option to quickly delete a type.
• Type deletions now show "Type permanently deleted" (derived from entry type) rather than the generic "Note permanently deleted", regardless of deletion path.
• Changed "Rename section" → "Rename type" throughout (locale keys, UI strings, component interactions)
• Rename input now has right margin to avoid covering the count badge; long type names truncate with ellipsis.
• Double-click the type name to inline-rename; double-click anywhere else on the header to open the type's definition note.
• Added Phosphor icons to each menu item: pencil (rename), palette (change icon/color), trash (delete); renamed "Customize" → "Change" in the UI

Demo

Screen.Recording.2026-04-28.at.15.46.36.mov

[glhrmv]

I don't mind resolving the merge conflicts but first I'd like to know whether this improvement is worthwhile. @LucaRonin any thoughts? :-)

[LucaRonin]

Love this! Will merge asap, thank you!

[glhrmv]

Rebased from upstream - it's ready.

[glhrmv]

I didn't include it in the demo, but here's what the right-click context menu on types looks like with these changes.

[glhrmv]

That rebase took some effort but it looks clean and ready to go. @LucaRonin

[LucaRonin]

Merged after some tweaks — closing this now. Thanks again for the contribution!