[FastAPI Bug] /account/{name}/edit: Account Type (T) input does not affect the account's type on submission

• I have described the bug in complete detail in the Description section.
• I have specified steps in the Reproduction section.

Description

When editing a user via /account/{name}/edit, submitting a modified Account Type input selection does not properly modify the account type of the user being edited.

This feature really needs several different acts, depending on credentials:

• Trusted Users should be able to demote / promote between User <-> Trusted User
• Developers should be able to demote / promote between all account types
• Users should not be able to demote or promote

Reproduction

Edit an account as a Trusted User or Developer. Change the account's Account Type and submit the form. The Account Type remains unchanged.