[Feature request] One handed mode activation to match the user's handedness.

[Linecutterx]

Please see the appropriate readme section for issue reporting guidelines: https://github.com/Helium314/HeliBoard?tab=readme-ov-file#reporting-issues
tl;dr:

• search for duplicates, also in closed issues
• a single issue per topic
• ONLY add screenshots when necessary, and reduce their size

Is your feature request related to a problem? Please describe.
The one handed keyboard selector key is almost as far from a right handed person's thumb as possible (the , key)
Describe the solution you'd like
Please provide a description of what you would like to have. The clearer it is described, the better it can be implemented the way you want it.
Enable moving the "menu" key - so that a key close to the right hand side of the screen can be used for right handed people to select one handed mode - one handed. (Or maybe the space should be the menu key?)
Use case
Provide a clear and concise description of your use case and what you thus think is missing, and why.

Describe alternatives you've considered (if any)