GroupChatInfo: Use f-strings, make label translatable

3 jobs for groupchat-info-copy in 3 minutes and 10 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
passed #19467
run-appdata

00:00:05

passed #19466
run-tests

00:02:54

 
  Build
passed #19468
run-build

00:00:10