refactor(trads): add missing traductions for download ticket

Author: Akinator31

crates/rustmail_panel/src/i18n/en/en.json

@@ -196,6 +196,7 @@
       "unknown_date": "Unknown date",
       "loading_ticket": "Loading ticket...",
       "ticket_not_found": "Ticket not found.",
+      "download": "Download ticket",
       "filters": "Message filters",
       "filter_user": "Users",
       "filter_staff": "Staff",

crates/rustmail_panel/src/i18n/fr/fr.json

@@ -197,6 +197,7 @@
       "unknown_date": "Date inconnue",
       "loading_ticket": "Chargement du ticket...",
       "ticket_not_found": "Ticket introuvable.",
+      "download": "Télécharger le ticket",
       "filters": "Filtres des messages",
       "filter_user": "Utilisateurs",
       "filter_staff": "Staff",