Thunderbird Beta 21.0b2

Fixed:

• Manage Folders opened the wrong account instead of the selected account (#11128)
• Application crashed when attempting to change account color (#11200)

Contributors:
Thanks to: @coreycb, @dani-zilla, @frabera, @himu-gupta, @mohitsatr, @mvanhorn, @rafaeltonholo, @shamim-emon, @stephenking314, @wmontwe

New Contributors:

• @mvanhorn made their first contribution in #11003

Full Changelog: THUNDERBIRD_21_0b1...THUNDERBIRD_21_0b2