[FIX] Bad words falling if message is empty

[ggazzo]

Issue(s)

In some places like Ominichannel channels creation was failing if the bad words is activated.
sendMessage(guest, { t: 'livechat-started', msg: '', groupable: false }, room);

Steps to test or reproduce

Further comments

[Shailesh351]

Reverting back to bad-words version 3.0.3 worked for me.

In the bad-words repo some users have reported similar issue for other cases as well. Like adding ":)" or "[" also causes the similar issue.

web-mech/badwords#103 web-mech/badwords#95

So, IMO it's better to use current stable version "bad-words": "3.0.3",