🎨 Palette: Add explicit focus rings to ImageUploader buttons

[MacTechIN]

💡 What: Added explicit keyboard focus rings (focus-visible) and missing ARIA attributes to the ImageUploader component's buttons.
🎯 Why: To improve keyboard accessibility. Previously, the focus rings might have been missing or clipped on the absolutely positioned "Remove Image" button within the overflow-hidden container.
📸 Before/After: Focus rings now explicitly outline the buttons when navigating via keyboard. The Remove button uses a red ring to indicate a destructive action.
♿ Accessibility:

• Added aria-label to the icon-only Remove button for screen readers.
• Added aria-hidden="true" to the internal <X /> icon to prevent redundant announcements.
• Added robust focus-visible styles with shadow-lg to prevent focus clipping.

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PR created automatically by Jules for task 3804850135737298172 started by @MacTechIN

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[gemini-code-assist]

Code Review

This pull request improves accessibility in ImageUploader.tsx by adding focus-visible ring classes, aria-label, and aria-hidden attributes to buttons. It also adds a learning note in .Jules/palette.md regarding absolute positioned buttons in overflow-hidden containers. Feedback was provided to correct the learning note, pointing out that both shadow and ring utilities use box-shadow and will be clipped by overflow: hidden, so the correct solution is placing the element outside the container or adding padding.

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[gemini-code-assist]

The action item suggests combining focus-visible classes with a shadow property (like shadow-lg) to prevent focus ring clipping in overflow-hidden containers. However, in CSS/Tailwind, both shadow and ring utilities are implemented using box-shadow, which will both be clipped by overflow: hidden if they extend beyond the container's boundary.

In the implementation of ImageUploader.tsx, the focus ring is not clipped because the absolute-positioned button is placed as a sibling outside of the overflow-hidden container (inside the parent relative wrapper), which is the correct way to avoid clipping.

Consider updating this learning note to clarify that placing the interactive element outside the overflow-hidden container (or adding sufficient padding/margins to the container) is what actually prevents clipping, rather than adding a shadow.

Suggested change

**Action:** Always combine standard focus-visible classes (`focus-visible:ring-2 focus-visible:ring-offset-2 focus-visible:outline-none`) with a shadow property (e.g., `shadow-lg`) or sufficient internal padding to ensure the focus ring remains fully visible. Adapt ring colors logically to the action context (e.g., destructive actions like 'Remove' should use red).

**Action:** Always place absolute positioned interactive elements (like overlay action buttons) outside of the overflow-hidden container (e.g., as a sibling inside a shared relative parent) or ensure the container has sufficient padding so that standard focus-visible classes (focus-visible:ring-2 focus-visible:ring-offset-2 focus-visible:outline-none) remain fully visible. Adapt ring colors logically to the action context (e.g., destructive actions like 'Remove' should use red).