statistics tab for discord chat

client/app/services/storage.service.ts

@@ -0,0 +1,17 @@
+const clear = () => {
+  localStorage.clear();
+};
+
+const setJWT = (token: string) => {
+  localStorage.setItem('jwt', token);
+};
+
+const getJWT = (): string | null => {
+  return localStorage.getItem('jwt');
+};
+
+export const StorageService = {
+  clear,
+  getJWT,
+  setJWT,
+};