Add setting to disable command execution by default
Please note by far the quickest way to get a new feature is to file a Merge Request.
Description of the new feature
This tweet implies that a Gajim user might be tricked into pasting some obscure text into a chat window and that will lead to a "remote command execution".
May I ask, what "/exec" and "/show" commands were made for? Are they actually used by somebody, or are they some kind of a legacy code? And is it possible to disable those commands completely by a user?