[FIX] Ignore file uploads from message box if text/plain content is being pasted  (#15631)
[FIX] Ignore file uploads from message box if text/plain content is being pasted  (#15631)


VoiSmart/Rocket.Chat,Sing-Li/Rocket.Chat,subesokun/Rocket.Chat,Sing-Li/Rocket.Chat,VoiSmart/Rocket.Chat,subesokun/Rocket.Chat,subesokun/Rocket.Chat,Sing-Li/Rocket.Chat,subesokun/Rocket.Chat,VoiSmart/Rocket.Chat,Sing-Li/Rocket.Chat