vim: Add :norm support (#33232)

Closes #21198

Release Notes:

- Adds support for `:norm`
- Allows for vim and zed style modified keys specified in issue
  - Vim style <C-w> and zed style <ctrl-w>
- Differs from vim in how multi-line is handled 
  - vim is sequential
  - zed is combinational (with multi-cursor)

crates/editor/src/editor.rs

@@ -16968,7 +16968,7 @@ impl Editor {
         now: Instant,
         window: &mut Window,
         cx: &mut Context<Self>,
-    ) {
+    ) -> Option<TransactionId> {
         self.end_selection(window, cx);
         if let Some(tx_id) = self
             .buffer
@@ -16978,7 +16978,10 @@ impl Editor {
                 .insert_transaction(tx_id, self.selections.disjoint_anchors());
             cx.emit(EditorEvent::TransactionBegun {
                 transaction_id: tx_id,
-            })
+            });
+            Some(tx_id)
+        } else {
+            None
         }
     }
 
@@ -17006,6 +17009,17 @@ impl Editor {
         }
     }
 
+    pub fn modify_transaction_selection_history(
+        &mut self,
+        transaction_id: TransactionId,
+        modify: impl FnOnce(&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)),
+    ) -> bool {
+        self.selection_history
+            .transaction_mut(transaction_id)
+            .map(modify)
+            .is_some()
+    }
+
     pub fn set_mark(&mut self, _: &actions::SetMark, window: &mut Window, cx: &mut Context<Self>) {
         if self.selection_mark_mode {
             self.change_selections(SelectionEffects::no_scroll(), window, cx, |s| {