create and update premium license for self host

src/locales/en/messages.json

@@ -1331,6 +1331,9 @@
   "updateLicense": {
     "message": "Update License"
   },
+  "updatedLicense": {
+    "message": "Updated license"
+  },
   "manageSubscription": {
     "message": "Manage Subscription"
   },
@@ -1413,5 +1416,26 @@
   },
   "updatedPaymentMethod": {
     "message": "Updated payment method."
+  },
+  "purchasePremium": {
+    "message": "Purchase Premium"
+  },
+  "licenseFile": {
+    "message": "License File"
+  },
+  "licenseFileDesc": {
+    "message": "Your license file will be named something like $FILE_NAME$",
+    "placeholders": {
+      "file_name": {
+        "content": "$1",
+        "example": "bitwarden_premium_license.json"
+      }
+    }
+  },
+  "uploadLicenseFilePremium": {
+    "message": "To upgrade your account to a premium membership you need to upload a valid license file."
+  },
+  "accountEmailMustBeVerified": {
+    "message": "Your account's email address must be verified."
   }
 }