thunderbird: update to 52.7.0.
thunderbird: update to 52.7.0.

NeoChontrix/void-packages,necrophcodr/void-packages,NeoChontrix/void-packages,coredumb/void-packages,necrophcodr/void-packages,coredumb/void-packages,coredumb/void-packages,NeoChontrix/void-packages,NeoChontrix/void-packages,coredumb/void-packages,coredumb/void-packages,NeoChontrix/void-packages,necrophcodr/void-packages,NeoChontrix/void-packages,necrophcodr/void-packages,necrophcodr/void-packages,coredumb/void-packages