🎨 Palette: Add for attributes to form labels for accessibility

[longestmt]

💡 What: Added for attributes to <label> elements pointing to the id of their respective input, select, or textarea fields.

🎯 Why: In many forms where a generic <label> element is placed visually near an input, screen readers do not automatically associate the label with the input. The <label> element needs a for attribute that strictly matches the id of the input element it represents to provide context for screen reader users and to expand the clickable area to focus the input.

📸 Before/After: Visually identical. HTML structure improved for screen readers.

♿ Accessibility: Significant improvement. Form fields are now properly linked to their descriptive labels, allowing screen readers to accurately read the input label when navigating form fields.

Journaled this learning in .Jules/palette.md.

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PR created automatically by Jules for task 1093018293492573387 started by @longestmt

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