keymap_ui: Hover tooltip for context (#34290)

Closes #ISSUE

Ideally the tooltip would only appear if the context was overflowing
it's column, but for now, we just unconditionally show a tooltip so that
long contexts can be seen.

This PR also includes a change to the tooltip element, allowing for
tooltips with non-text contents which is used here for syntax
highlighting

Release Notes:

- N/A *or* Added/Fixed/Improved ...

Co-authored-by: Anthony <anthony@zed.dev>
d1a6c5d494Ben Kunkle committed on 7/11/2025, 2:54:08 PM· committed by GitHubparent10028aa
2 files changedLine totals unavailable