fix: copy.js javascript initialization

Not sure where this works, but it doesn't seem to work on my
browser. Achieved the same by forEaching through the array
returned by querySelectorAll instead.
Signed-off-by: Kevin Morris <kevr@0cost.org>

templates/partials/packages/details.html

@@ -160,4 +160,3 @@
 </table>
 
 <script type="text/javascript" src="/static/js/copy.js"></script>
-

web/html/js/copy.js

 document.addEventListener('DOMContentLoaded', function() {
-	document.querySelectorAll('.copy').addEventListener('click', function(e) {
-		e.preventDefault();
-		navigator.clipboard.writeText(e.target.text);
-	});
+    let elements = document.querySelectorAll('.copy');
+    elements.forEach(function(el) {
+        el.addEventListener('click', function(e) {
+            e.preventDefault();
+            navigator.clipboard.writeText(e.target.text);
+        });
+    });
 });