Fix call container avatar initial centering
Fix call container avatar initial centering

Signed-off-by: Michel Zimmer <279a4cf6d7f8da1ddc113bb946b9273d9d938683@michel-zimmer.de>

matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk,matrix-org/matrix-react-sdk