Allow granular CSS imports + Fix bundle peer dependencies

[alexasselin008]

• Removed the css and components packages to simplify the structure and avoid bundled exports.
• Fonts are now properly loaded in Chromatic, making tests a more accurate representation of how users see our components.
• A detailed documentation article has been written to explain granular CSS imports.
• Reviewed and updated all stories due to font changes, fixing a few minor pre-existing issues in the process.
• Orbiter no longer exports @hopper-ui/components CSS, which was causing unnecessary CSS to be included.
• Removed some unused third-party code and a test suspected of causing issues with Chromatic.

Automating the export list of individual CSS files is an option but seems unnecessary for now. Any updates to Orbiter components will require manual adjustments, though the likelihood of adding new components is low.

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