Unification of registration fields order (#24737)
Place email filed in same order on all user creation pages.
Registration on installation page (before):
![image](https://github.com/go-gitea/gitea/assets/
1969460/
b0e6c8e5-4f6f-4225-b365-
946036aa6490)
Registration on main page:
![image](https://github.com/go-gitea/gitea/assets/
1969460/
8bd43ab7-e706-4088-8f64-
a61ca5c90d1b)
Create user account on site administration page:
![image](https://github.com/go-gitea/gitea/assets/
1969460/
ab0a90c4-748d-43aa-b267-
432d529888f0)
Registration on installation page (after):
![image](https://github.com/go-gitea/gitea/assets/
1969460/
1f5e29c2-988c-46d2-960b-
11b12789d7a7)