Display a "catching up" message when the client falls behind by more than a few ticks

[scottanderson]

When the client simulation falls behind by more than a few ticks, or when catching up during a reconnect (new behavior added in #1204), disable user input and display a message that the client simulation has fallen behind the server and is catching up.

[Spencer-Smith]

I can take this

[RjManhas]

@evanpelle @VariableVince @TheGiraffe3 ill take this, if you can close his pr, ill make a new one and start fresh due to the huge difference between that PR codebase and main

[TheGiraffe3]

I think you can close it.