Bug-fix-patch-19

Solved "Malformed UTF-8 characters" error in user directory listing page
for https://github.com/ladybirdweb/faveo-helpdesk/issues/309

app/Http/Controllers/Agent/helpdesk/UserController.php

@@ -109,7 +109,7 @@ class UserController extends Controller
                             }
                             if (strlen($string) > 20) {
                                 // truncate string
-                                $stringCut = substr($string, 0, 20);
+                                $stringCut = mb_substr($string, 0, 20, "UTF-8");
                             } else {
                                 $stringCut = $string;
                             }