Detected fields API error: Query too large

[gtk-grafana]

@cyriltovena is this something we need to fix on the backend side, or is there something we can do in the frontend to prevent this?

[zizzpudding]

If we can't prevent it, can we please update the error message to make it more useful for app users. The error message has too much jargon for our target audience.

[svennergr]

Should be fixed by grafana/loki#13423