fix: Undo RTL bug and moved the structure board back to the right for LTR

[fsbraun]

Description

This PR fixes a regression introduced with RTL support.

It also adjusts the arrows for menus and the structure board to point left instead of right.

It is raised against release/4.1.x to be quickly included in the release process of 4.1.1. It will hit develop-4 upon merging back the 4.1.1 release.

Related resources

• https://github.com/django-cms/djangocms-versioning/issues/402

• ...

Checklist

• [ ] I have opened this pull request against develop-4
• [ ] I have added or modified the tests when changing logic
• [ ] I have followed the conventional commits guidelines to add meaningful information into the changelog
• [ ] I have read the contribution guidelines and I have joined #workgroup-pr-review on Slack to find a “pr review buddy” who is going to review my pull request.

[fsbraun]

@sakhawy Can you check this quickly, please?

[sakhawy]

@fsbraun Sorry and thanks for the fix! I don't know why I put left instead of inset-inline-end!

[fsbraun]

@sakhawy Thanks for double-checking. I just wanted to be sure this is the right way to go.