feature: sortable events table

[euanwm]

Is your feature request related to a problem? Please describe.
The current events table for singular events gives a non-sortable table which isn't particularly engaging for visitors.

Describe the solution you'd like
The current NextUI table allows sortable rows to be enabled. Initially, it should be sortable by any of the number elements such as bodyweight to sinclair score.

A further push would be to allow selection by the gendered category which is not currently displayed on the events table.

Describe alternatives you've considered
Sorting by backend API call was considered briefly but would be excessive given that there is not a massive amount of data and would be much quicker to deal with on the FE side.