Toggle & Switch (#21979)

![CleanShot 2024-12-13 at 11 27
39@2x](https://github.com/user-attachments/assets/7c7828c0-c5c7-4dc6-931e-722366d4f15a)

- Adds the Switch component
- Updates `Selected`, `Selectable` -> `ToggleState`, `Toggleable`
- Adds `checkbox` and `switch` functions to align better with other
elements in our layout system.

We decided not to merge Switch and Checkbox. However, in a followup I'll
introduce a Toggle or AnyToggle enum so we can update
`CheckboxWithLabel` -> `ToggleWithLabel` as this component will work
exactly the same with either a Checkbox or a Switch.

Release Notes:

- N/A

crates/ui/src/components.rs

@@ -1,6 +1,5 @@
 mod avatar;
 mod button;
-mod checkbox;
 mod content_group;
 mod context_menu;
 mod disclosure;
@@ -28,6 +27,7 @@ mod stack;
 mod tab;
 mod tab_bar;
 mod table;
+mod toggle;
 mod tool_strip;
 mod tooltip;
 
@@ -36,7 +36,6 @@ mod stories;
 
 pub use avatar::*;
 pub use button::*;
-pub use checkbox::*;
 pub use content_group::*;
 pub use context_menu::*;
 pub use disclosure::*;
@@ -64,6 +63,7 @@ pub use stack::*;
 pub use tab::*;
 pub use tab_bar::*;
 pub use table::*;
+pub use toggle::*;
 pub use tool_strip::*;
 pub use tooltip::*;