debugger: Add support for setting multiple breakpoints via actions (#28437)

Allow setting multiple breakpoints with multi cursors

Release Notes:

- N/A

---------

Co-authored-by: Anthony Eid <hello@anthonyeid.me>
Co-authored-by: Remco Smits <djsmits12@gmail.com>
Co-authored-by: Anthony <anthony@zed.dev>

crates/editor/src/editor_tests.rs

@@ -17999,7 +17999,15 @@ fn add_log_breakpoint_at_cursor(
     cx: &mut Context<Editor>,
 ) {
     let (anchor, bp) = editor
-        .breakpoint_at_cursor_head(window, cx)
+        .breakpoints_at_cursors(window, cx)
+        .first()
+        .and_then(|(anchor, bp)| {
+            if let Some(bp) = bp {
+                Some((*anchor, bp.clone()))
+            } else {
+                None
+            }
+        })
         .unwrap_or_else(|| {
             let cursor_position: Point = editor.selections.newest(cx).head();