🎨 Palette: Improve GoalsList accessibility

[criptogus]

💡 What: Added ARIA labels to icon-only buttons in GoalsList.tsx and improved keyboard accessibility for hidden actions.

🎯 Why:

1. Screen Reader Accessibility: Previously, the "Edit" and "Delete" buttons were just icons without labels, making them inaccessible to screen reader users. The "Concluir" and "Reativar" buttons also had ambiguous text on mobile ("Ok", "Play").
2. Keyboard Accessibility: The action buttons were hidden with opacity-0 and only shown on hover. Keyboard users tabbing through the list would focus on invisible buttons.

📸 Before/After:

• Before: Action buttons invisible until mouse hover. Screen readers read nothing for icons.
• After: Action buttons appear when tabbing into the card. Screen readers announce "Editar meta", "Excluir meta", etc.

♿ Accessibility:

• Added aria-label and title attributes.
• Added group-focus-within:opacity-100 utility class.

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PR created automatically by Jules for task 15230940245778325600 started by @criptogus

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