Small fixes to task modal & long commands (#8974)

* Show the entire task tooltip on terminal tab hover:
<img width="979" alt="Screenshot 2024-03-07 at 01 40 56"
src="https://github.com/zed-industries/zed/assets/2690773/bc274a5c-70f6-4f3d-87b4-04aff3594089">

* Scroll to the end of the query when a menu label is reused as a query:
<img width="658" alt="Screenshot 2024-03-07 at 01 41 03"
src="https://github.com/zed-industries/zed/assets/2690773/972857f4-36db-49dc-8fa1-dd15e0470660">

Release Notes:

- Improved task modal UX with long bash-like commands
ae5ec9224cKirill Bulatov committed on 3/7/2024, 1:21:11 AM· committed by GitHubparentca37d39
2 files changedLine totals unavailable