Fix (Uninstall) - Restore mini-dashboard delete function (#3621)

* Fix (Uninstall) - Restore mini-dashboard delete function

* Fix phpstan

* Fix phpstan

* Update src/Install.php

Co-authored-by: Romain B. <[email protected]>

* Delete phpunit.xml to avoid CI errors

---------

Co-authored-by: Romain B. <[email protected]>

Author: RomainLvr

phpunit.xml

@@ -491,6 +491,14 @@ protected function deleteTables() {
       $displayPreference->deleteByCriteria(['itemtype' => 'PluginFormcreatorIssue']);
    }
 
+   protected function deleteMiniDashboard(): bool {
+      $dashboard = new Dashboard();
+
+      return $dashboard->deleteByCriteria([
+         'key' => 'plugin_formcreator_issue_counters'
+      ]);
+   }
+
    /**
     * http://stackoverflow.com/questions/834303/startswith-and-endswith-functions-in-php
     * @param string $haystack
@@ -508,6 +516,7 @@ public function uninstall() {
       $this->deleteTicketRelation();
       $this->deleteTables();
       $this->deleteNotifications();
+      $this->deleteMiniDashboard();
 
       $config = new Config();
       $config->deleteByCriteria(['context' => 'formcreator']);