implemented rights and fixed some appearance bugs

layouts/PageHeader.vue

@@ -67,6 +67,9 @@ const getSession = async () => {
         loggedInUserUsername.value = getItem('logged-in-user-username');
         store.commit('resetLocalStorageChanged');
     }
+    if (id.value.fullPath == '/login') {
+        darkMode.value = true;
+    }
 }
 
 const checkPath = async () => {