edit predictions: Add binding to the prediction toggle (#24468)

This PR primary goal is to add a keybinding to the (ephemeral)
prediction toggle. In doing that, we also standardized the keybinding to
open the status bar menu with it.

Release Notes:

- N/A

---------

Co-authored-by: Bennet Bo Fenner <53836821+bennetbo@users.noreply.github.com>

crates/ui/src/components/context_menu.rs

@@ -674,7 +674,8 @@ impl Render for ContextMenu {
                                                                 let contents = if toggled {
                                                                     v_flex().flex_none().child(
                                                                         Icon::new(IconName::Check)
-                                                                            .color(Color::Accent),
+                                                                            .color(Color::Accent)
+                                                                            .size(*icon_size)
                                                                     )
                                                                 } else {
                                                                     v_flex().flex_none().size(

crates/ui/src/components/icon.rs

@@ -234,6 +234,7 @@ pub enum IconName {
     Link,
     ListTree,
     ListX,
+    LockOutlined,
     MagnifyingGlass,
     MailOpen,
     Maximize,