Refining functions

A couple of functions need to be worked out.

Main improvements:
1- Configure the video sending function.
2- You need to add a video editor. (simple with pruning).
3- write a nickname to the database.
4- Add geolocation to the map.

Small improvements:
1- so that the button is not pressed before the content is loaded.
2- Removal of the list of popular hashtags.
3- Remove the increase / decrease in the scrol.
4- edit the appearance of the emoji panel.

I will provide examples of implementation.