Complete re-write of the original code for ThunderWave Beta

[AnthyG]

ThunderWave Beta is in the works for quite some time now, and it's finally making some progress 🎉
I planned to re-write pretty much all of the original code while using VueJS instead of dirty jQuery and javascript stuff. That should fix a lot of issues, e.g. editing own messages (#18) or fixing the annoying "bug" where two messages that where received at the almost same time make it so that only one of them shows.

Also, I am working on re-writing some of the larger functions like sendMSG, sendPrivateMSG, sendGroupMSG and the addMessage.... so that they are combined in one smaller function. But as that is actually not that easy, it will probably take me quite a lot of time to finish.

A list of things needed to be done will be added soon..