Hide unused category vboxes in inspector

[passivestar]

Only show category vboxes that have children (when a category has properties outside of any section) to prevent unnecessary margins mentioned in #93435

Before	After

Note: this has no effect on the default theme because the default theme has a separation of 0

[Mickeon]

Makes sense to me although I'm not the team of interest.

[KoBeWi]

You can use show()/hide() instead of set_visible(). Also I think the comment is unnecessary.

[akien-mga]

Thanks!

[programneer]

When i use this fix, it makes all settings in Project/Editor Settings hidden except the ones in sub-categories.
I guess they should revert it or make a little better solution.

[passivestar]

When i use this fix, it makes all settings in Project/Editor Settings hidden except the ones in sub-categories.
I guess they should revert it or make a little better solution.

Can't reproduce with the default editor/project settings, are you using some addons that extend editor/project settings?

[programneer]

...are you using some addons that extend editor/project settings?

No, i'm using 4.3.beta2 [b75f048] which is why that causes it.

The right engine with the wrong code can make all the difference in the environment.

[passivestar]

No, i'm using 4.3.beta2

This commit isn't in beta2, it was merged 5 days ago

[programneer]

This commit isn't in beta2

I mean, with the PR applied.

[passivestar]

Can you check if it works on master for you?

[Mickeon]

Please open another separate issue if this persists. I have tested the current build of the engine myself and cannot experience this.