fix(core): JSONObject interface definition should not reference the static `JSON` class
fix(core): JSONObject interface definition should not reference the static `JSON` class

red6/serenity-js,InvictusMB/serenity-js,InvictusMB/serenity-js,InvictusMB/serenity-js,red6/serenity-js,jan-molak/serenity-js,jan-molak/serenity-js,red6/serenity-js,jan-molak/serenity-js,jan-molak/serenity-js,red6/serenity-js,InvictusMB/serenity-js