Fix Windows Activate Process leading to stuck input

[Hilderin]

• Fixes Windows input: Right click drag does not rotate the camera #92305
• Fixes Windows input: Modifier keys get stuck after alt+tab #92304
  Bugsquad edit:
• Fixes Windows input: Godot 3D scene has extremely laggy input #92307
• Fixes Debugger window has massive delay after resize/move, and then alt-tabbed back and forth. #92759

I was able to reproduce the problem of key being stuck after Alt-Tab everything time after the editor windows moved.
The problem was caused by the move_timer_id that was not resetted and was stucked with same value of the activate_timer_id preventing the _process_activate_event from executing.

Godot 4.3 beta 1:

Godot_v4.3-beta1_win64_G0bbOp6EAi.mp4

After the fix:

godot.windows.editor.dev.x86_64_rag0uDhgEG.mp4

[bruvzg]

I can't reproduce the issue, but this change is definitely correct. SetTimer can reuse IDs and since we can have multiple times per window, not unsetting it might cause interference.

[akien-mga]

Thanks!