Fix the Username Field, to let users make new custom Names

[radioblahaj]

The Username field, does not let people to change their username propley.

**See Video **

It lets them to add new things and backspace from their current username

You can fix this by doing Ctrl + A (command + A on Mac) and typing a new one. (However, that's not very user friendly)

https://www.loom.com/share/eb07df72089741cdb1aad89947ebdf8d