🎨 Palette: Add ARIA label and focus state to close button in UploadResumeModal

[aafre]

💡 What: Added aria-label="Close modal" and focus-visible styling to the XMarkIcon close button in the UploadResumeModal component.
🎯 Why: The icon-only button lacked an accessible name, making it difficult for screen reader users to understand its purpose. It also lacked a clear visual indicator for keyboard navigation.
📸 Before/After: Verified via Playwright that keyboard navigation now triggers a clear white focus ring on the close button.
♿ Accessibility: Improved screen reader experience by providing an explicit ARIA label and enhanced keyboard accessibility with clear focus states.

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PR created automatically by Jules for task 5950397645050069236 started by @aafre

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[gemini-code-assist]

Code Review

This pull request improves the accessibility and focus states of the close button in the UploadResumeModal component by adding focus rings and an ARIA label. The review feedback suggests further refinements to the button's hit target size, focus visibility, and label text to better align with usability standards and idiomatic practices.

[gemini-code-assist]

To further improve accessibility and visual consistency for keyboard users, consider the following enhancements:

1. Hit Target Size: Increasing the padding to p-2 (and adjusting the negative margin to -m-2) will expand the interactive area to approximately 40x40px, which is closer to the recommended 44x44px target for better usability on touch devices and for users with motor impairments.
2. Focus Visibility: Adding focus-visible:text-white ensures the icon becomes fully opaque when focused via keyboard, matching the hover state behavior.
3. Concise Label: While "Close modal" is descriptive, "Close" is the standard idiomatic label for an 'X' button in a dialog context, ensuring the call-to-action text accurately and concisely describes its action.

Suggested change

	className="text-white/80 hover:text-white transition-colors focus:outline-none focus-visible:ring-2 focus-visible:ring-white rounded-lg p-1 -m-1"
	aria-label="Close modal"
	className="text-white/80 hover:text-white focus-visible:text-white transition-colors focus:outline-none focus-visible:ring-2 focus-visible:ring-white rounded-lg p-2 -m-2"
	aria-label="Close"

References

1. A call-to-action's text must accurately describe its action. Using 'Close' for an 'X' button is idiomatic and accurately describes the action of the button.

[aafre]

Closing: superseded by #442 (most comprehensive). Cherry-picked into #457.

[google-labs-jules]

Closing: superseded by #442 (most comprehensive). Cherry-picked into #457.

Understood. Acknowledging that this work is superseded and stopping work on this task.