Ticketz Open Source v1.0.30

• Uses new waVersion (whatsapp web protocol version)
• Do not send empty transfer messgaes (#254 and #227)
• Better handling of ACK messages
• Clear message field just after send - avoid duplicated sending
• Fix dashboard exhibition to non admin users
• Fix receiving of template messages send from official whatsapp API
• Send image previews
• Mark messages read only when accepting tickets (#260)