The right side of the interface extends beyond the screen when there are a lot of editors below

[JekSun97]

Tested versions

4.3 stable, 4.4 dev2

System information

Godot v4.3.stable - Windows 10.0.19045 - Vulkan (Forward+) - dedicated Radeon RX 560 Series (Advanced Micro Devices, Inc.; 31.0.14001.45012) - Intel(R) Core(TM) i5-4570 CPU @ 3.20GHz (4 Threads)

Issue description

When I have a lot of elements at the bottom of the editor, the whole interface of the right side of the editor together with the inspector goes off the screen, maybe we should add a tab switcher with left and right arrows?

I can also see errors in the output:
Can't add child 'Control' to '@VBoxContainer@6642', already has a parent '@VBoxContainer@6642'.

Screen resolution: 1600x900

Steps to reproduce

1. Open MRP
2. Enable the plugin and restart the project
3. Errors, as well as the right side of the screen goes beyond the screen if your screen is not wide enough

Minimal reproduction project (MRP)

mrp.zip

[tetrapod00]

Duplicate of #95681. But your MRP may be better than the one I made since it represents a realistic use case of many small names rather than few large ones.