Oh boy #Qt can get *nasty* if you need something "unusual" (like, initialize 4000 Labels all on startup 🎶🤫).

So, I can't fix performance of this, but I can "defer" it with a hacky hidden class like this.

It uses #Qtimer for a 1ms pause between every single emoji, which was the *only* way I found to have Qt still process other events 🤯 ... prefers the currently visible tab for initialization ... and "commits suicide" when done.

I'm proud and ashamed at the same time 🥴