debugger: A support for data breakpoint's on variables (#34391)

Closes #ISSUE

Release Notes:

- N/A *or* Added/Fixed/Improved ...

---------

Co-authored-by: Piotr Osiewicz <24362066+osiewicz@users.noreply.github.com>
Co-authored-by: Mikayla Maki <mikayla.c.maki@gmail.com>
Co-authored-by: Mikayla Maki <mikayla@zed.dev>

crates/debugger_ui/src/debugger_ui.rs

@@ -83,6 +83,8 @@ actions!(
         Rerun,
         /// Toggles expansion of the selected item in the debugger UI.
         ToggleExpandItem,
+        /// Set a data breakpoint on the selected variable or memory region.
+        ToggleDataBreakpoint,
     ]
 );