fix: Various minor christmas mode styling fixes

frontend/src/components/ChristmasLights.vue

@@ -39,7 +39,7 @@ export default {
 	.christmas-lights {
 		position: absolute;
 		width: 100%;
-		height: 50px;
+		height: 64px;
 		left: 0;
 		top: 64px;
 		display: flex;

frontend/src/components/layout/MainHeader.vue

@@ -357,4 +357,8 @@ export default {
 		}
 	}
 }
+
+.christmas-mode .nav {
+	border-radius: 0 !important;
+}
 </style>

frontend/src/pages/Home.vue

@@ -793,6 +793,10 @@ export default {
 		&.loggedIn {
 			top: 20vh !important;
 		}
+
+		@media only screen and (max-width: 550px) {
+			top: 45vh !important;
+		}
 	}
 	.header {
 		&,