feat: use a seed to generate random mines placement

add(autosolver): in sets strategy, skip the pair if both have 0 nearby mines left or if non flagged neighbors sets are the same

doc, refactor(autosolver): minor changes with some doc additions

chg(autosolver): replaced first_move_ with _open_random_cell

chg(autosolver): renamed 'random_move' to '_open_random_cell'

doc(autosolver): a bit of general documentation

style: isort & black (-l99)

feat(autosolver): count won/loss rate

chg(autosolver): update game window only in debug mode

feat(game): keeps track of the outcome of the game, whether the player has won or lost

feat(autosolver): specify the number of games to play

add: non interactive mode to for the autosolver

refactor(game): for changed with sum

refactor(game): use 'cell' as an alias for 'event.widget'

chg(autosolver): replaced get_nearby_cells function calls with cell.neighbors