fleshing out the end of game alert so that the game can be reset
display total score to the user and a couple of style tweaks
better handling for scores and high score, also some display improvements related to scores
style tweaks
bug fixing hover colour in debug mode
linting
consistency with speech marks
starting unit tests, some of these don't pass yet
commenting ship parts
fixing test syntax
more unit tests and tidying
making sure everything has comments and a bit of tidying up
more tests