Drop the Host Settings card now the partnership settings card covers HOST1/HOST2

It existed to render two fields that live in master.conf's HOST IDENTITIES group, which the shared renderer now includes — one settings surface for the page rather than two both editing the same file.

Plugin/unraid/api/partnership_settings.php

@@ -64,9 +64,14 @@ require_once dirname(__DIR__) . '/include/confform.php';
 $files = vv_get_conf_files();
 $out   = [];
 foreach ($files as $f) {
+    // "HOST IDENTITIES" is included alongside the partnership subsections because it holds HOST1
+    // and HOST2 — the hostnames the whole partnership is keyed on. They were shown by a separate
+    // "Host Settings" card on the partnership page, which existed only to render those two fields
+    // and is now redundant: one settings surface for the page, not two that both edit master.conf.
     $groups = array_values(array_filter(
         vv_conf_all_groups($f),
         fn($g) => stripos($g['subsection'], 'partnership') !== false
+               || stripos($g['subsection'], 'host identities') !== false
     ));
     if ($groups) {
         $out[] = ['file' => $f, 'groups' => $groups];