More deletes. Fixed sticky header.

components/layout/AppLayout.module.css

@@ -2,12 +2,12 @@
   display: grid;
   grid-template-rows: 1fr;
   grid-template-columns: max-content 1fr;
-  height: 100vh;
-  overflow: hidden;
 }
 
 .nav {
   grid-row: 1 / 3;
+  height: 100vh;
+  position: fixed;
 }
 
 .body {