Euro-Office: Mobile support via webview

[tobiasKaminsky]

Office: Euro-Office/DocumentServer#72 Euro-Office/web-apps#54
Android: nextcloud/android#17037
iOS: nextcloud/ios#4109

[moodyjmz]

@tobiasKaminsky When I generate an url using

curl --request POST \                                                          
  --url 'http://admin:admin@localhost:8081/ocs/v2.php/apps/files/api/v1/directEditing/open?editorId=onlyoffice&creatorId=textdocument&format=json' \
  --header 'Content-Type: multipart/form-data' \
  --header 'OCS-APIRequest: true' \
  --form path=/test.docx

and this returns eg

{"ocs":{"meta":{"status":"ok","statuscode":200,"message":"OK"},"data":{"url":"http:\/\/localhost:8081\/apps\/files\/directEditing\/65ANj437WbMT2W5JwDxxZkc4sW3JeR9PjBgsoFLaaKcCrAt2CRAS7j5Y9AYwj8Kf"}}}

The url will open up in EuroOffice - in the browser. I do have an Nextcloud app on my iPhone simulator via Xcode - this can open EuroOffice too, however not via the link.