Add save & update functionality to positions

Tooltips also added, as well as a general configuration file for Mojang Status URL.
Relationships were also added between forms and Vacancies.
Status verification for the dashboard was moved to a Service Provider, where it adds log entries when cache expires.
Authentication controllers were also updated to reflect the new dashboard URL.

config/general.php

@@ -0,0 +1,15 @@
+<?php
+
+return [
+
+    'urls' =>
+    [
+
+        'mojang' => [
+
+            'statuscheck' => env('MOJANG_STATUS_URL') ?? 'https://status.mojang.com/check'
+
+        ]
+    ]
+
+];