Implement Overall Quality tab in /classifiers

[schizo-monke]

Because certain classifiers meet the bar for high-quality in some divisions and not others (particularly with fixed time classifiers that are too easy in PCC but more well-calibrated for minor handgun divisions), we should implement an Overall Quality score in its own tab under the Classifiers section.

This could be as simple of taking the MIN of the quality score for the classifiers across the more significant divisions (LO, CO, PCC, OPN, LTD).

This Overall Quality tab could serve as a one-stop shop for match directors looking to pick high-quality classifiers without needing to verify quality against all relevant divisions.

[schizo-monke]

Nevermind - I missed that this was already implemented. Closing.