Fix missing Ctrl-[ bindings in Vim mode

This "adds" the keybindings I was missing in Vim mode (e.g. `Ctrl-[` to
cancel a selection) by fixing the definitions in the keymap from
`Ctrl+[` to `Ctrl-[`.

crates/vim/src/test.rs

@@ -71,6 +71,30 @@ async fn test_toggle_through_settings(cx: &mut gpui::TestAppContext) {
     assert_eq!(cx.mode(), Mode::Normal);
 }
 
+#[gpui::test]
+async fn test_cancel_selection(cx: &mut gpui::TestAppContext) {
+    let mut cx = VimTestContext::new(cx, true).await;
+
+    cx.set_state(
+        indoc! {"The quick brown fox juˇmps over the lazy dog"},
+        Mode::Normal,
+    );
+    // jumps
+    cx.simulate_keystrokes(["v", "l", "l"]);
+    cx.assert_editor_state("The quick brown fox ju«mpsˇ» over the lazy dog");
+
+    cx.simulate_keystrokes(["escape"]);
+    cx.assert_editor_state("The quick brown fox jumpˇs over the lazy dog");
+
+    // go back to the same selection state
+    cx.simulate_keystrokes(["v", "h", "h"]);
+    cx.assert_editor_state("The quick brown fox ju«ˇmps» over the lazy dog");
+
+    // Ctrl-[ should behave like Esc
+    cx.simulate_keystrokes(["ctrl-["]);
+    cx.assert_editor_state("The quick brown fox juˇmps over the lazy dog");
+}
+
 #[gpui::test]
 async fn test_buffer_search(cx: &mut gpui::TestAppContext) {
     let mut cx = VimTestContext::new(cx, true).await;