feat: add accessibility for forms

src/components/CommonKit/Modal/Modal.tsx

src/components/Connection/ConnectionFormLogin.tsx

src/components/Connection/ConnectionFormOAuth.tsx

src/components/Connection/OAuthForm.tsx

src/components/Feedback/FeedbackModal.tsx

src/components/Feedback/feedbackModal.scss

src/components/Header/CozyBar.tsx

src/components/Header/Header.tsx

src/locales/fr.json