assistant2: Adjust spacing and icons on the context picker (#23607)

Just fine-tuning spacing, icon size and color, and ensure they're are
consistent throughout.

Release Notes:

- N/A
fc3a871264Danilo Leal committed on 1/24/2025, 3:34:11 PM· committed by GitHubparent8efed4c
9 files changedLine totals unavailable