Merge branch '677-antragsformular-suma-beitritt' into 'development'

Resolve "Antragsformular SUMA-Beitritt"

Closes #677

See merge request !1166

resources/lang/de/staticPages.php

@@ -24,7 +24,7 @@ return [
     'nav20'               => 'Hilfe',
     'nav21'               => 'FAQ',
     'nav22'               => 'Zitatsuche',
-    'nav23'               => 'Beitrittsformular SUMA-EV',
+    'nav23'               => 'Aufnahmeantrag SUMA-EV',
     'nav24'               => 'MetaGer Quellcode',
     'nav25'               => 'MetaGer App',
     'navigationToggle'    => 'Navigation anzeigen',