Fix logged in state claim id

src/Server/Controllers/MistoxControllerBase.cs

@@ -1,6 +1,7 @@
 using Microsoft.AspNetCore.Mvc;
 using BoredCareers.Entities;
 using BoredCareers.Services.DatabaseService;
+using System.Security.Claims;
 
 namespace BoredCareers.Controllers {
 
@@ -20,7 +21,7 @@ namespace BoredCareers.Controllers {
         }
 
         public int getLoggedInUserID() {
-            return Convert.ToInt32(User.FindFirst("ID")?.Value);
+            return Convert.ToInt32(User.FindFirstValue(ClaimTypes.NameIdentifier));
         }
 
         public async Task<Account> getLoggedInUser() {