Fix Remove forward slash from desktop filename (Shenzhen I/O)

[slowsage]

Description

Installing Shenzhen I/O throws the following error:

Traceback (most recent call last):
  File "/usr/lib/python3.12/site-packages/minigalaxy/installer.py", line 72, in install_game
    error_message = create_applications_file(game)
                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/minigalaxy/installer.py", line 271, in create_applications_file
    os.remove(path_to_shortcut)
FileNotFoundError: [Errno 2] No such file or directory: '/home/USERNAME/.local/share/applications/SHENZHEN I/O.desktop'

/ is not a valid character for a filename in linux. This PR removes all / from the filename part of the path.

Checklist

• [x] CHANGELOG.md was updated (format: - Change made (thanks to github_username))

[slowsage]

Can also add a one line helper function _sanitize_filename that is reused if thats cleaner. Not sure what you prefer.

[sharkwouter]

If you want to use a sanitize method, I would suggest you do the following:

• Update this function to exclude slashes: https://github.com/sharkwouter/minigalaxy/blob/master/minigalaxy/game.py#L50
• Then use this function in your change: https://github.com/sharkwouter/minigalaxy/blob/master/minigalaxy/game.py#L22
• It probably makes sense then to also make this function use the _strip_string method: https://github.com/sharkwouter/minigalaxy/blob/master/minigalaxy/game.py#L25

[slowsage]

__strip_string excludes slashes already but unfortunately also spaces which messes up the desktop file names. I have changed the code to reuse get_stripped_name in installer.py and updated get_install_directory_name since its basically the same.

[sharkwouter]

Thanks for the fix! It's really appreciated!