🎨 Palette: Add aria-label to navigation items

[vireapp]

🎨 Palette: Add aria-label to Navigation Items

💡 What: Added aria-label attributes to the Link components in DashboardNav and MobileNav.
🎯 Why: In DashboardNav, the text label is hidden on smaller screens (hidden md:inline), effectively making the links act as icon-only buttons. In MobileNav, the text label is completely hidden by design in favor of a minimal icon and active dot style. Without aria-labels, these navigation items lack descriptive context for screen reader users, making the navigation less accessible.
♿ Accessibility: Screen readers can now correctly identify the purpose of all primary navigation links across all device viewports.

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PR created automatically by Jules for task 14984852327407453678 started by @vireapp

[google-labs-jules]

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