Tilemap editor width is too big on 1366x768 with 100% scaling, Inspector gets cropped

[FreegleBarr]

Godot version

4.0.alpha1

System information

Ubuntu 20.04

Issue description

The new tilemap editor stretches a bit to the sides in my setup with 100% scale and 1366x768 resolution, which causes the inspector dock to be slightly off-screen.

Steps to reproduce

• Change your resolution to 1366x768 if not default.
• Open the TileMap editor plugin.

Minimal reproduction project

No response

[akien-mga]

That's technically a duplicate of #31133, but like often this can be worked around by reducing the minimum width of the dock.
Here for example the following elements all take way too much width:

• "Place Random Tile" checkbox (would be even worse for some translations)
• "Scattering:" + its spinbox
• Layer #0 drop down

[groud]

@akien-mga or, if it works, we may replace the HBoxContainer of the toolbar by the brand new FlowContainter. That could help on small screens.