Is your feature request related to a problem? Please describe.
the settings pages can be very long and save some minor options, you have to scroll a lot to reach the save button. Would be comfortable to have the navigation kind of floating to be always visible with css-only rule position:sticky

Describe the solution you'd like
put position:sticky; bottom:0; to settings navigation

Checklist

• I have searched the GitHub issues to ensure this is not a duplicate
• I have confirmed that this feature is not already available in the latest version of the plugin

Additional context
Screenshot: