Phi 2.1.1

Phi Browser 2.1.1 is here, a small stability release focused on Spaces, Sentinel, and a few rough edges left behind by 2.1.0.

We fixed several Sentinel update issues, made Private Spaces behave more predictably, and cleaned up layout glitches around Split View, floating sidebars, compact windows, and switching Spaces for the first time. Safari profile imports should now be more reliable, Google Meet audio indicators should be less jumpy, and a handful of small UI oddities have been returned to where they belong.

Special thanks to Oliver Medhurst for the tip that helped us make Sentinel more secure.

Mostly polish. Quietly important.