fix: header too wide for desktop

Author: NiHaiden

sass/_header.scss

@@ -58,8 +58,9 @@
 header.index-header {
     position: absolute;
     top: 0;
+    left: 0;
+    right: 0;
     z-index: 2;
-    width: 100vw;
 }
 
 header {