Clean up inviteLink handling, harden compose input

ts/window.d.ts

@@ -224,6 +224,7 @@ declare global {
     setAutoHideMenuBar: (value: WhatIsThis) => void;
     setBadgeCount: (count: number) => void;
     setMenuBarVisibility: (value: WhatIsThis) => void;
+    setSecureInput: (enabled: boolean) => void;
     showConfirmationDialog: (options: ConfirmationDialogViewProps) => void;
     showKeyboardShortcuts: () => void;
     storage: {