Update participant statistics queries in fxInfosBibRange and fxInfosBibEpreuve functions
This commit modifies the SQL queries in the `fxInfosBibRange` and `fxInfosBibEpreuve` functions to improve the accuracy of participant statistics. The `nb_utilises` count now reflects distinct bib numbers, ensuring correct tallying for teams sharing bibs. Additionally, the logic for fetching event statistics is refined to handle team configurations more effectively, enhancing the overall data retrieval process. These changes aim to improve data integrity and clarity in participant reporting.
stephan
f35d651ffc