feat: upgrade to .NET 6, refactor everything

PluralKit.API/Controllers/v1/AccountController.cs

@@ -1,34 +1,32 @@
-using System.Threading.Tasks;
-
 using Microsoft.AspNetCore.Mvc;
 
 using Newtonsoft.Json.Linq;
 
 using PluralKit.Core;
 
-namespace PluralKit.API
+namespace PluralKit.API;
+
+[ApiController]
+[ApiVersion("1.0")]
+[Route("v{version:apiVersion}/a")]
+public class AccountController: ControllerBase
 {
-    [ApiController]
-    [ApiVersion("1.0")]
-    [Route("v{version:apiVersion}/a")]
-    public class AccountController: ControllerBase
+    private readonly IDatabase _db;
+    private readonly ModelRepository _repo;
+
+    public AccountController(IDatabase db, ModelRepository repo)
     {
-        private readonly IDatabase _db;
-        private readonly ModelRepository _repo;
-        public AccountController(IDatabase db, ModelRepository repo)
-        {
-            _db = db;
-            _repo = repo;
-        }
+        _db = db;
+        _repo = repo;
+    }
 
-        [HttpGet("{aid}")]
-        public async Task<ActionResult<JObject>> GetSystemByAccount(ulong aid)
-        {
-            var system = await _repo.GetSystemByAccount(aid);
-            if (system == null)
-                return NotFound("Account not found.");
+    [HttpGet("{aid}")]
+    public async Task<ActionResult<JObject>> GetSystemByAccount(ulong aid)
+    {
+        var system = await _repo.GetSystemByAccount(aid);
+        if (system == null)
+            return NotFound("Account not found.");
 
-            return Ok(system.ToJson(User.ContextFor(system)));
-        }
+        return Ok(system.ToJson(User.ContextFor(system)));
     }
 }