Fix api key and status "caching" inside admin panel

[cydrobolt]

When user information is edited through the "API Info" modal (e.g API status, API key), those changes aren't reflected when someone closes the modal and reopens it. We should somehow remember those recent changes to avoid this problem. Because the modal is deleted after each close, a new modal is created each time based on the API status and key provided on page load rather than the up-to-date API key or status.

A potential solution would be to hide the modal without closing it in order to preserve the newly changed information, or to pull the information each time the modal is created.

[overint]

duplicate of #146

[ashazar]

Changes applied to the user view automatically now.

[ashazar]

TODO:

• Update 'Developer' page details as well, if the current user has API privileges.
• If the admin set his/her API status to false, hide Developer item in the sidebar.