capture-mode-demo-tools: Show assistant and menu keys

Demo: http://b/265984951#comment2
Fixed: b/265984951
Test: Manually
Change-Id: I178bc281c2655e55240b7d08017490644bb4a79f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4240685
Reviewed-by: Ahmed Fakhry <afakhry@chromium.org>
Commit-Queue: Michele Fan <michelefan@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1104167}

ash/capture_mode/capture_mode_demo_tools_controller.cc

@@ -89,7 +89,9 @@ constexpr ui::KeyboardCode kNotNeedingModifierKeys[] = {
     ui::VKEY_UP,
     ui::VKEY_DOWN,
     ui::VKEY_LEFT,
-    ui::VKEY_RIGHT};
+    ui::VKEY_RIGHT,
+    ui::VKEY_ASSISTANT,
+    ui::VKEY_SETTINGS};
 
 // Returns true if `key_code` is a non-modifier key for which a `KeyComboViewer`
 // can be shown even if there are no modifier keys are currently pressed.