We should use the data from [TargetingContextRecorder](https://searchfox.org/firefox-main/rev/76725a83d79957b14072bde359520e8de4c58c74/toolkit/components/nimbus/lib/TargetingContextRecorder.sys.mjs#118) to flag which fields reported on the JEXL debugger page are available in telemetry or not. See-also #230
We should use the data from TargetingContextRecorder to flag which fields reported on the JEXL debugger page are available in telemetry or not.
See-also #230