fix click to copy when there is more than one copy link on the page.

Fixes issue reported on the mailing list here: https://lists.archlinux.org/pipermail/aur-general/2022-March/036833.html

Thanks to Henry-Joseph Audéoud for diagnosing the issue
https://lists.archlinux.org/pipermail/aur-general/2022-March/036836.html

Also update the event variable to use the local copy instead of the
deprecated global version
https://stackoverflow.com/questions/58341832/event-is-deprecated-what-should-be-used-instead

web/html/js/copy.js

 document.addEventListener('DOMContentLoaded', function() {
-	document.querySelector('.copy').addEventListener('click', function(e) {
+	document.querySelectorAll('.copy').addEventListener('click', function(e) {
 		e.preventDefault();
-		navigator.clipboard.writeText(event.target.text);
+		navigator.clipboard.writeText(e.target.text);
 	});
 });

web/template/pkg_details.php

@@ -309,9 +309,9 @@ endif;
 
 <script>
 document.addEventListener('DOMContentLoaded', function() {
-	document.querySelector('.copy').addEventListener('click', function(e) {
+	document.querySelectorAll('.copy').addEventListener('click', function(e) {
 		e.preventDefault();
-		navigator.clipboard.writeText(event.target.text);
+		navigator.clipboard.writeText(e.target.text);
 	});
 });
 </script>

web/template/pkgbase_details.php

@@ -138,9 +138,9 @@ endif;
 
 <script>
 document.addEventListener('DOMContentLoaded', function() {
-	document.querySelector('.copy').addEventListener('click', function(e) {
+	document.querySelectorAll('.copy').addEventListener('click', function(e) {
 		e.preventDefault();
-		navigator.clipboard.writeText(event.target.text);
+		navigator.clipboard.writeText(e.target.text);
 	});
 });
 </script>