New user tutorial

[projacktor]

Elements and animations for newcomers of evops

1. events creation
2. Editing
3. Reactions
4. Mute/unmute
5. Recommendations

[asqarslanov]

Have you personally used these tutorials ever? 😁

As I see it, no matter how good we implement this, most users will just skip the tutorial.

A better thing to do is write good documentation.