refactor(client): bump to winit 0.30 & fixes

[elmarco]

Update code to winit 0.30, various large refactoring necessary.

Related fixes.

My main motivation was fixeing a crash on wayland with HiDPI, and also use update to latest crates.

Fixes: #375 Fixes: #521 Fixes: #522

[elmarco]

Looks good to me! @elmarco Is PR ready to be merged?

yes! thanks

[elmarco]

thanks!