Added prefixCaseInsensitive client option

Author: xNickyDev

dist/core/ForgeClient.d.ts

@@ -24,6 +24,10 @@ export interface IRawForgeClientOptions extends ClientOptions {
      * The prefixes our bot will act upon for command messages
      */
     prefixes?: string[];
+    /**
+     *  Whether prefixes should be case-insensitive, this only affects letters
+     */
+    prefixCaseInsensitive?: boolean;
     /**
      * Specifies the logs to be received
      */