add nicer meta description

Co-authored-by: Oliver Roick <[email protected]>

Author: batpad

public/index.html

@@ -7,7 +7,7 @@
     <meta name="theme-color" content="#000000" />
     <meta
       name="description"
-      content="STAC Admin"
+      content="Edit STAC collection and item metadata in a user-friendly interface."
     />
     <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
     <!--