base64_encode $folderId => Fixes https://github.com/nextcloud/mail/issues/2262
base64_encode $folderId => Fixes https://github.com/nextcloud/mail/issues/2262

Signed-off-by: Cyrille Bollu <f10b1ee40e16bbcc26426d6b8293e2d4d2e723ee@bollu.be>

kingjan1999/mail,kingjan1999/mail,kingjan1999/mail