Fix git clone URL

 $if repo.exists():
     $ git_clone_url = f"{tx.origin}/code/projects/{project}.git"
     <script>
-    copyText = () => { navigator.clipboard.writeText('$git_clone') }
+    copyText = () => { navigator.clipboard.writeText('$git_clone_url') }
     </script>
     <pre><small>git clone $git_clone_url <button onclick=copyText()>📋</button></small></pre>