chore: update schema

packages/testing/addon/mirage-graphql/schema.graphql

@@ -2424,19 +2424,38 @@ input QuestionFilterSetType {
 """
 Question jexl expression returning boolean.
 
-Following transform can be used:
-* answer - access answer of document by question slug
-* mapby - map list by key. Helpful to work with table answers
+Following transforms can be used:
+* `answer`: get answer of document by question slug
+* `mapby`: map list by key. Helpful to work with table answers
   whereas an answer is a list of dicts.
+* `stringify`: JSON stringify
+* `flatten`: flatten list values
+* `min`: get min value in a list
+* `max`: get max value in a list
+* `sum`: sum of a list
+* `round`: round the value
+* `ceil`: round value up
+* `floor`: round value down
+* `debug`: debug output
+
+Following binary operators can be used:
+* `intersects`: list intersection operator
 
 Following context is available:
-* form - access form of document
+* `form`: legacy property pointing to the root form (this should not be used anymore)
+* `info.form`: slug of the form this question is attached to
+* `info.formMeta`: meta property of the form this question is attached to
+* `info.parent.form`: parent form slug
+* `info.parent.formMeta`: parent form meta property
+* `info.root.form`: top level form slug
+* `info.root.formMeta`: top level form meta property
 
 Examples:
 * 'answer' == 'question-slug'|answer
 * 'answer' in 'list-question-slug'|answer
 * 'answer' in 'table-question-slug'|answer|mapby('column-question')
-* 'form-slug' == form
+* 'answer' in 'table-question-slug'|answer|mapby('multiple-choice-question')|flatten
+* 'form-slug' == info.form
 """
 scalar QuestionJexl