feat: add button to skip to next member

[ochicf]

Is your feature request related to a problem? Please describe.

Sometimes a member finishes their timer faster than what's configured and the remaining timer blocks must be skipped manually. This can induce clicking once more and skipping a timer block of the next member.

Describe the solution you'd like to see

It would be nice to be able to skip all remaining timer blocks of the current member and start the first timer block of the next member.

Desribe alternate solutions

Keep using the current skip timer block button to skip manually.

Additional information

We should probably add tooltips to all buttons so it's clearer what every button does.