small roles update

api/src/Controllers/UsersController.cs

@@ -20,13 +20,13 @@ public class UsersController : ControllerBase {
         service_ = service;
     }
 
-    [Authorize(Roles = "Admin, Superuser")]
+    [Authorize(Policy = "RequireAdmin")]
     [HttpGet]
     public async Task<ActionResult<List<User>>> getUsers() {
         return Ok(await service_.GetAll());
     }
 
-    [Authorize(Roles = "Admin, Superuser")]
+    [Authorize(Policy = "RequireAdmin")]
     [HttpGet("{id:int}")]
     public async Task<ActionResult<User>> getUser(int id) {
 
@@ -37,7 +37,7 @@ public class UsersController : ControllerBase {
         return Ok(user);
     }
 
-    [Authorize(Roles = "Superuser")]
+    [Authorize(Policy = "RequireSuperuser")]
     [HttpDelete("{id}")]
     public async Task<ActionResult> deleteUser(int id) {