Adding links to recordings

This should add a link to all the recordings, so you can copy and share with a friend, or save somewhere.

There's better ways some of this can be done, but it works for now.

(please test this! not sure if I copied all the right files to git)

homepage/index.php

@@ -54,6 +54,14 @@ if(isset($_GET['stream'])){
   <h1><a href=\"\">BirdNET-Pi</a><img src=\"images/version.svg\"></h1>
 </div>";
 }
+if(isset($_GET['filename'])) {
+  $filename = $_GET['filename'];
+echo "
+<iframe src=\"/views.php?view=Recordings&filename=$filename\"></iframe>
+</div>";
+} else {
   echo "
 <iframe src=\"/views.php\"></iframe>
 </div>";
+}
+