add all frontend files

node_modules/copy-to-clipboard/index.d.ts

@@ -0,0 +1,14 @@
+// Type definitions for copy-to-clipboard 3.0
+// Project: https://github.com/sudodoki/copy-to-clipboard
+// Definitions by: Denis Carriere <https://github.com/DenisCarriere>, MartynasZilinskas <https://github.com/MartynasZilinskas>
+
+interface Options {
+  debug?: boolean;
+  message?: string;
+  format?: string; // MIME type
+  onCopy?: (clipboardData: object) => void;
+}
+
+declare function copy(text: string, options?: Options): boolean;
+declare namespace copy { }
+export = copy;