🎨 Palette: Forgot password success state UX enhancement

[godie]

This PR implements a micro-UX improvement to the "Forgot Password" page to provide better feedback and a smoother recovery flow.

💡 What:

• The success state now displays a mark_email_read icon and a clear "¡Correo Enviado!" headline.
• Added a "No recibí el correo, intentar de nuevo" button that allows users to return to the form if they made a mistake or the email didn't arrive, without a page reload.
• Switched the primary action button to v2-btn-filled for better visual emphasis.

🎯 Why:
The previous success state was static and didn't offer an easy path for users who didn't receive their email. This change improves confidence and reduces friction in a critical authentication flow.

📸 Before/After:

• Verified with Playwright screenshots:
  • 01_forgot_password_initial.png: Initial form state.
  • 02_forgot_password_success.png: New dynamic success state with "Try again" option.
  • 03_forgot_password_retry.png: Back to form after clicking retry.

♿ Accessibility:

• Maintained proper semantic structure and ensured that state transitions are intuitive.
• Removed redundant aria-label and title attributes that were identified as noise during code review.

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PR created automatically by Jules for task 17947953825725051888 started by @godie

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