download/linux: Bump recommended package to postgresql-18

This bumps the version from 17 to 18 and also splits the final "apt
install" call into a separate box since the heading only claims to
configure the repository.

We also replace "postgresql" by "postgresql-18" since users of our repo
will likely want to have control over which version is selected.

1 files changed, 5 insertions, 0 deletions

diff --git a/media/js/download.js b/media/js/download.js
index 8493ef06..60bc9f6e 100644
--- a/media/js/download.js
+++ b/media/js/download.js
@@ -27,6 +27,11 @@ function setupHandlers() {
             copyScript(this, 'script-box2');
         });
     }
+    if (document.getElementById("copy-btn3") && document.getElementById("script-box3")) {
+        document.getElementById('copy-btn3').addEventListener('click', function () {
+            copyScript(this, 'script-box3');
+        });
+    }
 }
 
 document.addEventListener("DOMContentLoaded", setupHandlers);