Change jsonSamplesExpandLevel to prevent horizontal scrolling

Author: paoloredis

layouts/_default/apireference.html

@@ -63,7 +63,7 @@
         <redoc 
             spec-url='./openapi.json' 
             scroll-y-offset='#apiReferenceHeader'
-            json-sample-expand-level=all
+            json-sample-expand-level=5
             sort-operations-alphabetically="true"
             theme='{
                 "rightPanel": {