Merge branch 'development' of https://gitlab.metager3.de/open-source/MetaGer into development

app/Http/Controllers/KeyController.php

app/Http/Kernel.php

app/Http/Middleware/EncryptCookies.php

app/MetaGer.php

app/Providers/RouteServiceProvider.php

resources/lang/de/datenschutz.php

resources/lang/de/faq.php

resources/lang/de/hilfe.php

resources/lang/de/index.php

resources/lang/de/key.php

resources/lang/de/titles.php

resources/lang/en/datenschutz.php

resources/lang/en/faq.php

resources/lang/en/hilfe.php

resources/lang/en/index.php

resources/lang/en/key.php

resources/lang/en/titles.php

resources/lang/es/datenschutz.php

resources/less/metager/pages/key.less

resources/less/metager/parts/searchbar.less