Save time upon finishing scenario

[xsebek]

• closes "Best time" includes time elapsed while Congratulations dialog is displayed #1111

[xsebek]

I tried removing the saves directory and running solution for the spiral maze on main and here:

rm -rf ~/.local/share/swarm/saves

S=scenarios/Challenges/Mazes/easy_spiral_maze.yaml
yq '.solution' $S > maze.sw  # so you can run "maze.sw" later ;)

git checkout main
cabal run swarm:swarm -- --scenario $S  # let it sit in the quit dialog for a minute

git checkout finish-scenario-time
cabal run swarm:swarm -- --scenario $S # let it sit in the quit dialog for a minute

[byorgey]

Makes sense!