ui: Add Chip component (#34521)

Possibly the simplest component in our set, but a nice one to have so we
can standardize how it looks across the app.

Release Notes:

- N/A

crates/ui/src/components.rs

@@ -2,6 +2,7 @@ mod avatar;
 mod banner;
 mod button;
 mod callout;
+mod chip;
 mod content_group;
 mod context_menu;
 mod disclosure;
@@ -43,6 +44,7 @@ pub use avatar::*;
 pub use banner::*;
 pub use button::*;
 pub use callout::*;
+pub use chip::*;
 pub use content_group::*;
 pub use context_menu::*;
 pub use disclosure::*;