Fix for muted role change caching until bot restarts

DeukBot4/Database/ServerSettings/ServerSetting.cs

@@ -13,10 +13,11 @@ namespace DeukBot4.Database.ServerSettings
         }
 
         public ulong ServerId { get; }
-        public ulong MutedRoleId { get; }
+        public ulong MutedRoleId { get; private set; }
 
         public async Task SetMutedRoleId(ulong id)
         {
+            MutedRoleId = id;
             using (var conn = new DatabaseConnection())
             {
                 using (var cmd = new NpgsqlCommand())

DeukBot4/Utilities/StringExtensions.cs

@@ -7,7 +7,7 @@ namespace DeukBot4.Utilities
         public static string RemoveSpecialCharacters(this string str) {
             StringBuilder sb = new StringBuilder();
             foreach (char c in str) {
-                if ((c >= '0' && c <= '9') || (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')) {
+                if (char.IsLetterOrDigit(c) || char.IsWhiteSpace(c)) {
                     sb.Append(c);
                 }
             }