bugfix and linux version

I have ported borzoi's codegen to work with Linux, so a Linux version of the game is included

Another fellow minesweeper enjoyer u/dzemzmcdonalda has pointed out a few bugs this game has had, and (hopefully) I've fixed those now

Those fixes are:

• If you try chording a cell, and your flags were set incorrectly, only the mines will be revealed, no new empty cells will be opened
• If you place flags before opening your very first cell the game no longer behaves weirdly

First release idk

First release, for some reason it freezes for a few seconds when trying to close lol