Renamings for consistency

src/Nadeko.Bot.Modules.Searches/_common/LowerCaseNamingPolicy.cs

@@ -0,0 +1,12 @@
+#nullable disable
+using System.Text.Json;
+
+namespace NadekoBot.Modules.Searches.Common;
+
+public class LowerCaseNamingPolicy : JsonNamingPolicy
+{
+    public static LowerCaseNamingPolicy Default = new();
+
+    public override string ConvertName(string name)
+        => name.ToLower();
+}