Match creation

[1fini]

Improve match creation

MatchCreate.razor page is not user friendly enough. Indeed it lacks a few informations that we could get from the tournament data.
Such as NumberOfSetsToWin and all other required data to create the match (First server etc.)
Fields to add & optimizations:

• NumberOfSetsToWin => to delete since it can be found in the format linked to tournament (I wanted to be able to create a match without tournament but I'm hesitating now).
• Choose players from a dropdown list of existing players (? or auto-completion?) : in CreateMatchRequest (API) we need to identify players by IDs