fix schema

wax-questions-service/src/FillTheGapQuestionService/schema/fillTheGapContainerNode.js

@@ -5,10 +5,7 @@ const fillTheGapContainerNode = {
     feedback: { default: '' },
   },
   group: 'block questions',
-  atom: true,
-  draggable: false,
-  selectable: true,
-  defining: true,
+  isolating: true,
   content: 'paragraph+',
   parseDOM: [
     {

wax-questions-service/src/MatchingService/schema/matchingContainerNode.js

@@ -6,9 +6,7 @@ const matchingContainerNode = {
     feedback: { default: '' },
   },
   group: 'block questions',
-  atom: true,
-  selectable: true,
-  draggable: false,
+  isolating: true,
   content: 'block*',
   parseDOM: [
     {

wax-questions-service/src/MultipleDropDownService/schema/multipleDropDownContainerNode.js

@@ -5,10 +5,7 @@ const multipleDropDownContainerNode = {
     feedback: { default: '' },
   },
   group: 'block questions',
-  atom: true,
-  selectable: false,
-  draggable: false,
-  defining: true,
+  isolating: true,
   // content: 'paragraph* bulletlist* orderedlist*',
   content: 'block*',
   parseDOM: [

wax-questions-service/src/NumericalAnswerService/schema/NumericalAnswerContainerNode.js

@@ -9,7 +9,7 @@ const NumericalAnswerContainerNode = {
     answersPrecise: { default: [] },
   },
   group: 'block questions',
-  atom: true,
+  isolating: true,
   content: 'block+',
   parseDOM: [
     {