Fix: include assets for darkmode

[joapuiib]

Fix #34

Changed pyproject.toml:

packages = [
    { include = "mkdocs_drawio" },
]
include = [
    "mkdocs_drawio/css/*.css",
    "mkdocs_drawio/js/*.js",
]

[joapuiib]

@tuunit Let me know if you want me to increase the version to 1.11.2

[tuunit]

@tuunit Let me know if you want me to increase the version to 1.11.2

Please go ahead and bump the version :) - Done

[tuunit]

Good that you spotted the issue so quickly. I actually look at this part yesterday and just forgot to add it 🤦🏻