[UI][Improvement] GroupLimitReached should clearly displayed on Pinot UI

Currently group limit reached is not reflected on the final query result. as the default query group limit is set to 1million. it is unlikely the condition is hit. however when the condition is hit. it doesn't actually show the warning banner "partial query result obtained"

Discussed previously in https://github.com/apache/pinot/issues/7130; https://github.com/apache/pinot/issues/8022; https://github.com/apache/pinot/issues/7398 but we shouldn't silently return partial aggregated results within showing warning on UI