fix(docs): tooltip color contrast accessibility

[falbech]

Closes #2633

✅ Checklist

• [x] I have followed every step in the contributing guide
• [x] The PR title follows the convention.
• [x] I ran and tested the code works

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Testing

1. Start the docs locally with pnpm run dev --filter docs
2. In the docs, go to /manual-setup.
3. Hover the Copy or any other action icon on any code block.

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Changelog

Added a new global style.css file. Included a CSS selector that improves text visibility by adjusting the tooltip’s text color for better contrast.

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Screenshots

Before:

After

[changeset-bot[bot]]

⚠️ No Changeset found

Latest commit: 26d677816f0bfdf40667dfd3e34191e5aa7a8bdc

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

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[coderabbitai[bot]]

Walkthrough

This pull request adds a changeset documenting a patch release and includes a CSS modification. Specifically, it introduces a changelog entry for "trigger.dev" describing an accessibility fix for tooltip color contrast on documentation pages. The corresponding CSS change adds a styling rule targeting a tooltip element that follows a button, setting its text color to black to improve visual contrast.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

• The changeset file is metadata documentation only
• The CSS modification is a single, straightforward rule addition with no logic complexity
• Changes are minimal, focused, and low-risk

Pre-merge checks and finishing touches

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly and concisely describes the main change: fixing tooltip color contrast accessibility in docs, which matches the primary objective of the changeset.
Description check	✅ Passed	The PR description follows the template structure with all required sections completed: issue reference, checklist items checked, testing steps provided, changelog entry, and before/after screenshots included.
Linked Issues check	✅ Passed	The code changes directly address issue #2633 by adding CSS styling to improve tooltip text color contrast on the docs /manual-setup page, exactly as required.
Out of Scope Changes check	✅ Passed	All changes are narrowly scoped to the stated objective: the changeset file and CSS stylesheet modification are both directly related to fixing the tooltip accessibility issue.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing touches

🧪 Generate unit tests (beta)

• [ ] Create PR with unit tests
• [ ] Post copyable unit tests in a comment

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