🎨 Palette: Expand clickable hit targets and improve VoiceOver in list rows

[acebytes]

💡 What:
Wrapped the entire content of CategoryRow and NodeModulesRow in a Button rather than restricting the tap target to just the small checkbox image. Applied .contentShape(Rectangle()) so that empty space in the row registers taps, and .buttonStyle(.plain) to prevent unintended row-wide link styling.

🎯 Why:
The previous implementation required high precision to click the small checkbox to select or deselect a row. Now users can comfortably click anywhere on the row to toggle its state.

📸 Before/After:
Before: Only the 24x24 icon area was interactive.
After: The entire width of the row is interactive.

♿ Accessibility:
Added .accessibilityElement(children: .combine) to both row types. Previously, VoiceOver users had to navigate through fragmented text blocks (name, size, badge) to reach the checkbox toggle. Now, the row is announced as a single cohesive, interactive descriptive element.

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PR created automatically by Jules for task 16129611402811052332 started by @acebytes

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