Block Toolbar position is misaligned in RTL language

[t-hamano]

Description

In the RTL language, the block toolbar shifts (physically) to the right when a block is selected in the editor.

• It is reproduced by clicking on a block while no block is in focus.
• Mouse over the right portion of the block toolbar or scroll up and down will be repositioned to the correct position.
• If you click on one of the blocks and then click on another, it will not reproduce.

Step-by-step reproduction instructions

• Change the WordPress language to RTL language (Alternatively, it can be reproduced with the RTL Tester plugin).
• Insert some blocks.
• Click once outside the block with the mouse to remove focus from blocks.
• Click on any of the blocks and confirm that the toolbar is pushed to the right.

Screenshots, screen recording, code snippet

a1864bacc79e7ff0e29ed1b63ce4c6cd.mp4

Environment info

• WordPress Version: 6.1-alpha-53873
• Gutenberg Version 14.0.0-rc.1
• Theme: Twenty Twenty Two

Please confirm that you have searched existing issues in the repo.

Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

Yes

[t-hamano]

I have confirmed that this problem is not reproduced with the latest trunk.
I believe #42950 probably solved the problem.