BUGFIX: Flatten Questionset questions array

library.json

@@ -3,7 +3,7 @@
   "contentType": "question",
   "majorVersion": 1,
   "minorVersion": 0,
-  "patchVersion": 19,
+  "patchVersion": 20,
   "runnable": 1,
   "machineName": "H5P.QuestionSet",
   "author": "Amendor AS",

semantics.json

@@ -41,11 +41,6 @@
     "entity": "question",
     "field": {
       "name": "question",
-      "type": "group",
-      "label": "Question",
-      "fields": [
-        {
-          "name": "library",
       "type": "library",
       "label": "Question type",
       "description": "Library for this question.",
@@ -55,8 +50,6 @@
         "H5P.Blanks 1.0"
       ]
     }
-      ]
-    }
   },
   {
     "name": "introPage",