Updated UI and fix a few bugs in the Manager.

[J0nathan550]

Removed also Bender font because it was not really using much in the launcher and everyone hated it. Also updated missing keys once again.

[J0nathan550]

I'm happy enough with this.

The headings in places look mostly better there's still one or two places they're not quite right but we can come up with something better for that before we release this again.

The other thing which we can do something to later is the buttons have a strange hover effect sometimes now which flickers mainly on the the install pages, can just sort this in another PR as well.

I wish to know how to animate stuff in Avalonia. I would do it in seconds. But it's a tricky thing.

[artehe]

I'm happy enough with this. The headings in places look mostly better there's still one or two places they're not quite right but we can come up with something better for that before we release this again. The other thing which we can do something to later is the buttons have a strange hover effect sometimes now which flickers mainly on the the install pages, can just sort this in another PR as well.

I wish to know how to animate stuff in Avalonia. I would do it in seconds. But it's a tricky thing.

There was something somewhere which explained it rather well, but there's also this https://docs.avaloniaui.net/docs/guides/graphics-and-animation/keyframe-animations which should explain it as well.