Stablize account management UI and flows

[RMacfarlane]

• Should always show Github sign in entry, have default scopes for provider Show sign in entry for all auth providers in accounts menu #94488
• Add sign out toast for GitHub provider Add sign out toast for GitHub authentication provider #94634
• Show Active Accounts - show session usage per session Show active usage in accounts menu #94635
• Only prompt setting sync changes on active window Only prompt about sync changes on the active window #94176
• Show auth provider name next to account Show auth provider name next to account name in accounts menu #95476

[RMacfarlane]

Marking as duplicate to remove from verification list, each individual item will be verified instead