fix: optimize URL handling in version selector dropdown

risk: low

Author: ParzivalPavlis

docs/layouts/partials/navbar-version-selector.html

@@ -14,11 +14,14 @@
 </button>
 <div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
 	{{ range .Site.Params.versions }}
+	{{ $finalUrl := cond (gt (len (findRE "^http(s)?://" .url)) 0) .url (relURL .url) }}
+	{{ if $finalUrl }}
 	<a
 		class="dropdown-item{{ if eq ( $.Scratch.Get "activeVersion" ) ( printf "%s" .version ) }} active{{ end }}"
-		href="{{ cond (gt (len (findRE "^http(s)?://" .url)) 0) .url (relURL .url) }}"
+		href="{{ $finalUrl }}"
 	>
 		{{ .version }}
 	</a>
 	{{ end }}
+	{{ end }}
 </div>