[Feature] Solve statistics

[JacoMalan1]

What needs to be done

We need to create a page where the user can view their solve statistics and export the data.

Why we need it

This is a core feature of a solve timer.

Steps we'll take

1. Create a new page dedicated to solve statistics.
2. Implement statistics calculations and display.
3. Implement data export.

Success looks like

Users can easily view and export their solve data statistics.