Arrow keys work without Fn outside Text Entry

; . , / are arrows on their own unless the foreground App is editing
text (App::textEntryActive); Fn + those keys are arrows everywhere.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EhqxQ49eCju4CzKYNjZzwT

src/main.cpp

@@ -143,6 +143,7 @@ void loop() {
     M5Cardputer.update();
     if (M5Cardputer.Keyboard.isChange()) {
         bool swallow = M5Cardputer.Keyboard.isPressed() && power->onKey(now);  // only woke the screen
+        keyMapper.setTextEntry(apps->foreground().textEntryActive());
         auto events = keyMapper.update(readKeys());  // always, so held keys are tracked
         if (!swallow)
             for (auto& e : events) apps->handleKey(e);