[Regression] Disabling editable on a LineEdit also disables keyboard shortcuts (Ctrl+C) and select-all-on-focus

[BenLubar]

Tested versions

Encountered in 4.4.dev4.official.36e6207bb
Cannot reproduce in 4.3.stable.official.77dcf97d8

System information

Godot v4.4.dev4 - Debian GNU/Linux trixie/sid trixie on X11 - X11 display driver, Multi-window, 1 monitor - OpenGL 3 (Compatibility) - Mesa Intel(R) Graphics (RPL-P) - 13th Gen Intel(R) Core(TM) i7-1360P (16 threads)

Issue description

Setting the editable property also disables non-editing actions like click-to-select and non-modifying keyboard shortcuts like ^C and ^A

Steps to reproduce

1. Launch MRP
2. Click on first LineEdit control
3. Highlight text manually because it didn't do it automatically
4. Press Ctrl+C
5. Attempt to paste in the second LineEdit control

Minimal reproduction project (MRP)

editable-repro.zip