MDL-76127 Profiling: Make the breadcrumb of the profiling URL clickable

Boost has the behavior to remove the last item action.
To avoid that, we need to add an action item.

admin/tool/profiling/index.php

@@ -51,6 +51,12 @@
     $PAGE->navbar->add($listurl, $listurlnav);
 }
 
+// Add a new nav item to make $listurl clickable for the Boost theme.
+if (isset($script)) {
+    $lastrunnav = get_string('lastrun', 'tool_profiling');
+    $PAGE->navbar->add($lastrunnav);
+}
+
 // Header
 echo $OUTPUT->header();
 

admin/tool/profiling/lang/en/tool_profiling.php

@@ -41,6 +41,7 @@
 $string['importprefix'] = 'Import prefix';
 $string['importproblem'] = 'Some problem happened importing the file "{$a}".';
 $string['lastrunof'] = 'Summary of last run of {$a}';
+$string['lastrun'] = 'Summary of last run';
 $string['markreferencerun'] = 'Mark as reference run/comment';
 $string['memory'] = 'Memory used';
 $string['pluginname'] = 'Profiling runs';