1486 - Giving the capability for admin to change user access level for any user

[ntrehan]

Fixes #1486

What changes did you make and why did you make them ?

• Provided a toggle in the edit users screen granting an admin the capability to change the access level of a user
• refactored CSS files to avoid code repitition
• added restrictions on the model layer allowing accessLevel to be either of the 2 strings "user" and "admin"

Screenshots of Proposed Changes Of The Website

Visuals before changes are applied


Visuals after changes are applied


[trillium]

🤣 Perct, this allows me to remove admin access from Josh

[JackHaeg]

@ntrehan Just noticed that there is a small spelling error in the screenshots - "VRSM ADMIN" when it should be "VRMS ADMIN"