Completa traduzioni privacy, mailer e flash del form contatti.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/config/locales/mailers.en.yml

@@ -9,6 +9,23 @@ en:
       expiry_html: "The link is valid for %{hours} hours. If you did not request this reset, ignore this email — your password will not change."
       ignore: If you did not request this reset, ignore this email.
       footer: "Match Live TV — %{email}"
+    contact:
+      subject:
+        commercial: "Sales enquiry — %{name}"
+        support: "Support enquiry — %{name}"
+        privacy: "Privacy enquiry — %{name}"
+      heading: New website enquiry
+      name: "Name:"
+      email: "Email:"
+      club: "Club:"
+      club_none: Not provided
+      topic: "Topic:"
+      topic_labels:
+        commercial: Sales / quote
+        support: Technical support
+        privacy: Privacy / GDPR
+      message: "Message:"
+      footer: Match Live TV — Contact page
     replay_ready:
       subject: "Replay ready — %{title}"
       hello: "Hi %{name},"