fix(billing): add required messages

message

apps/web/src/locales/en/messages.json

@@ -12690,5 +12690,36 @@
   },
   "invoicePreviewErrorMessage": {
     "message": "Encountered an error while generating the invoice preview." 
+  },
+  "planProratedMembershipInMonths": {
+    "message": "Prorated $PLAN$ membership ($NUMOFMONTHS$)",
+    "placeholders": {
+      "plan": {
+        "content": "$1",
+        "example": "Families"
+      },
+      "numofmonths": {
+        "content": "$2",
+        "example": "6 Months"
+      }
+    }
+  },
+  "premiumMembershipDiscount": {
+    "message": "Premium membership discount"
+  },
+  "enterpriseMembership": {
+    "message": "Enterprise membership"
+  },
+  "teamsMembership": {
+    "message": "Teams membership"
+  },
+  "plansUpdated": {
+    "message": "You've upgraded to $PLAN$!",
+    "placeholders": {
+      "plan": {
+        "content": "$1",
+        "example": "Families"
+      }
+    }
   }
 }