Fix export dialog sizing issue on small devices

[m4gr3d]

Fixes #73130

• Update the min height from 700 to 500 to match the editor's min height of 600
• Wrap the Resources and Encryption sections of the TabContainer within a ScrollContainer. This prevents the export dialog from trying to resize to fit the tallest of those sections, and make them accessible on small screen devices.

[KoBeWi]

Another thing that could be scrollable is error list. It can get quite lengthy 🤔

EDIT:
Yeah with default size there is too little space:

EDIT2:
Since this tab is scrollable now, the Tree can get a minimum size. It's ridiculously small.

[Hicham-Nait-Bakkou]

How do I compile this to an apk so i can use it?

[KoBeWi]

The errors are not visible at all now 🙃
ScrollContainer has no size by default, you should probably give it a minimum one.
The file Tree still needs minimum size.

[m4gr3d]

Since this tab is scrollable now, the Tree can get a minimum size. It's ridiculously small.

@KoBeWi I've added a min size for the file tree, so it's now visible when the dialog is resized.

Another thing that could be scrollable is error list. It can get quite lengthy

I've reverted the changes to the error list; I couldn't figure out the proper configuration that would get it to both be scrollable, but expand as needed based on its parent's height.
Also making the error list scrollable is not needed to address #73130; the current updates already make the project export dialog usable on small screens even with multiple errors showing.

[akien-mga]

Thanks!