Prepare switch to mozilla92

• # (Rebase tor-browser patches to 92.0bX)
• tor-browser-build# (Make the list of components updates for switch to mozilla92-based Fenix)
• tor-browser-build# (Update components for switch to mozilla92-based Fenix)
• # (Review developer notes for Firefox 92)
• # (Review GeckoView Changelog for gv92)
• # (Review closed mozilla92 bug)
• tor-browser-spec# (FF92 network audit)
• tor-browser-bundle-testsuite# (Update tests when switching to Fenix 92)