Global usings and file scoped namespaces

src/NadekoBot/Db/Models/MutedUserId.cs

@@ -1,19 +1,18 @@
-namespace NadekoBot.Services.Database.Models
+namespace NadekoBot.Services.Database.Models;
+
+public class MutedUserId : DbEntity
 {
-    public class MutedUserId : DbEntity
+    public ulong UserId { get; set; }
+
+    public override int GetHashCode()
     {
-        public ulong UserId { get; set; }
-
-        public override int GetHashCode()
-        {
-            return UserId.GetHashCode();
-        }
-
-        public override bool Equals(object obj)
-        {
-            return obj is MutedUserId mui
-                ? mui.UserId == UserId
-                : false;
-        }
+        return UserId.GetHashCode();
     }
-}
+
+    public override bool Equals(object obj)
+    {
+        return obj is MutedUserId mui
+            ? mui.UserId == UserId
+            : false;
+    }
+}