🎨 Palette: Improve accessibility of Goals List actions

[criptogus]

• 💡 What:
  • Added aria-label and title to "Edit" and "Delete" buttons in GoalsList component.
  • Added group-focus-within:opacity-100 to the actions container.
  • Added a unit test src/tests/components/GoalsList.test.tsx to verify these accessibility improvements.
• 🎯 Why:
  • Previously, "Edit" and "Delete" actions were hidden until hovered, making them invisible and confusing for keyboard users.
  • The icon-only buttons lacked accessible names, making them unusable for screen reader users.
• 📸 Before/After:
  • Before: Actions invisible on focus, no screen reader names.
  • After: Actions visible on focus, descriptive names for screen readers.
• ♿ Accessibility:
  • Keyboard navigation: Controls now appear on focus.
  • Screen reader: Buttons now have "Editar meta" and "Excluir meta" labels.

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PR created automatically by Jules for task 11816094245647722084 started by @criptogus

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