feat: dark mode support

index.html

@@ -81,7 +81,7 @@
         flex-direction: column;
         align-items: center;
         justify-content: center;
-        border: 1px solid black;
+        border: 1px solid white;
         gap: 24px;
         height: 290px;
         transition-property: opacity;
@@ -114,6 +114,10 @@
         #logo {
           border: 1px solid black;
         }
+
+        .app {
+          border: 1px solid black;
+        }
       }
     </style>
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />