chore: update docs font

[urmauur]

Describe Your Changes

This pull request adds global styling to the website by introducing a new custom font and updating the configuration to include the global CSS file. The most notable changes are the addition of multiple font weights for the Studio Feixen Sans font and the application of this font throughout the site.

Styling and font integration:

• Added a global.css file that defines several @font-face rules for the Studio Feixen Sans font family, covering a range of weights from ultralight to bold. This ensures consistent typography across the site.
• Set CSS variables for the main and monospace fonts in the :root selector, and applied the main font to the html and body elements for site-wide usage.

Configuration update:

• Updated the Astro site configuration to include the new global.css file as a custom CSS asset, enabling the new font and styling to take effect.

Fixes Issues

• Closes #
• Closes #

Self Checklist

• Added relevant comments, esp in complex areas
• Updated docs (for bug fixes / features)
• Created issues for follow-up changes or refactoring needed

---

Important

Introduces Studio Feixen Sans font across the site with new global.css and updates astro.config.mjs to apply it globally.

• Styling and Font Integration:
  • Added global.css with @font-face rules for Studio Feixen Sans covering weights from ultralight to bold.
  • Set CSS variables for main and monospace fonts in :root and applied to html and body.
• Configuration Update:
  • Updated astro.config.mjs to include global.css for site-wide font application.

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[github-actions]

Preview URL Astro Docs: https://78749efe.astro-docs-14t.pages.dev

[ellipsis-dev]

Caution

Changes requested ❌

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• Reviewed 124 lines of code in 10 files
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• Skipped posting 2 draft comments. View those below.
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1. website/src/styles/global.css:17

• Draft comment:
  Verify that the unconventional font-weight value (350) for 'Studio Feixen Sans-Book' is intentional.
• Reason this comment was not posted:
  Confidence changes required: 33% <= threshold 50% None

2. website/src/styles/global.css:57

• Draft comment:
  Typo: The ':root' selector should be written with a single colon. Replace '::root' with ':root'.
• Reason this comment was not posted:
  Decided after close inspection that this draft comment was likely wrong and/or not actionable: usefulness confidence = 0% vs. threshold = 50% The comment appears to be incorrect - looking at the actual code, line 57 already uses ':root' with a single colon, not '::root'. The comment is suggesting a fix for a problem that doesn't exist. This is a new file being added, and the code is already correct. Could I be misreading the line? Should I double-check CSS specifications to verify the correct syntax? I've clearly verified the code shows ':root' with a single colon, and I'm confident about CSS selector syntax. The comment is definitely incorrect about the current state of the code. The comment should be deleted because it's suggesting a fix for a problem that doesn't exist - the code already uses the correct ':root' syntax.

Workflow ID: wflow_az6i5TSEVlw2rCtU

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[Minh141120]

LGTM!