Indicator for app upstarts

[moWerk]

During the 2026 FOSDEM user hands on it became apparent that we need some sort of app upstart indicator that informs the user that the watch is busy serving the last user input and block it for successive ones.
My implementation idea would be

• loadingOverlay in Mainscreen.qml that also contains the already laoded wallpaper and displays it on top of all screen content to simulate the ui elements fading out.
• Calls in all app start "onClicks" to first make the loadingOverlay visible.
• LoadingOverlay kicks with 100ms fade and has AsteroidOS logo pulsing to 75% opacity while the app is loading.
• Easter Egg, display excuse messages to amuse users during long waits >4 seconds that change every 2 seconds
  cycling through "Still working", 
"No worries, i am alive", 
"Yeah, sorry.", 
"Ugh, nearly there", 
"Peeep Bop"
, "Pheeeew"
• mousearea on the whole loadingOverlay with no action to prevent impatient user multi clicks.

[dodoradio]

another one: on tap, trigger a zooming animation that results in the app icon (or name, or other relevant graphic) filling the screen. this would probably need to be done per-launcher layout, since they're all a bit different