Tasks score notes (#8507)

* Added setting and modal for score notes

* Added persistent score notes

* Fixed linting issues and documented new field

* Added max length to task score notes

* Added check for score notes existence

* Combined tasks perferences

website/server/models/user/schema.js

@@ -469,6 +469,7 @@ let schema = new Schema({
     },
     tasks: {
       groupByChallenge: {type: Boolean, default: false},
+      confirmScoreNotes: {type: Boolean, default: false},
     },
     improvementCategories: {
       type: Array,