Text Input in editor stops working after unfocus

### Tested versions

- 4.4.1.stable

### System information

Godot v4.4.1.stable - Ubuntu 24.04.3 LTS 24.04 on X11 - X11 display driver, Multi-window, 2 monitors - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 2070 (nvidia; 550.163.01) - Intel(R) Core(TM) i7-8700K CPU @ 3.70GHz (12 threads)

### Issue description

When unfocusing from the editor (like going to look at documentation in my web browser or changing what YouTube video I have playing in the background elsewhere) and coming back to the editor, text input does not respond.

### Steps to reproduce

1. Have somewhere to type in Godot available (e.g. rename a node, write script)
2. Alt+Tab / Click out of Godot to do something else
3. Re-focus Godot Editor window
4. Attempt to type

### Minimal reproduction project (MRP)

N/A