fix(touchSelectionMenu): reset #menuRequested on outside-editor dismissal

Tapping outside the editor dismisses the menu but was not resetting
#menuRequested, causing the menu to reappear unexpectedly on
programmatic focus + state change with no new user selection.

Author: Ajit Kumar

src/cm/touchSelectionMenu.js

@@ -306,6 +306,7 @@ class TouchSelectionMenuController {
 		}
 		this.#shiftSelectionSession = null;
 		this.#isPointerInteracting = false;
+		this.#menuRequested = false;
 		this.#hideMenu();
 	};