[fix] Add missing EN i18n

www/i18n/locale-en-GB.json

@@ -771,6 +771,7 @@
     "CHECK_NETWORK_CONNECTION": "No peer appears to be accessible.<br/><br/>Please <b>check your Internet connection</b>.",
     "ISSUE_524_TX_FAILED": "Failed to transfer.<br/><br/>A message has been sent to developers to help solve the problem.<b>Thank you for your help</b>.",
     "ADD_SECONDARY_WALLET_FAILED": "Unable to add secondary wallet.",
+    "REMOVE_SECONDARY_WALLET_FAILED": "Unable to remove secondary wallet.",
     "UPDATE_WALLET_LIST_FAILED": "Unable to refresh the list of wallets.",
     "LOAD_WALLET_LIST_FAILED": "Unable to load the list of wallets.",
     "SAVE_WALLET_LIST_FAILED": "Unable to save the list of wallets.",
@@ -955,7 +956,7 @@
       "DEMO_RESULT": "Result returned by call:",
       "DEMO_RESULT_PEER": "Peer address used:",
       "DEMO_SUCCEED": "<i class=\"icon ion-checkmark\"></i> Success!",
-      "DEMO_CANCELLED": "<i class=\"icon ion-close\"></i> Canceled by user",
+      "DEMO_CANCELLED": "<i class=\"icon ion-close\"></i> Cancelled by user",
       "INTEGRATE_DIVIDER": "Website integration",
       "INTEGRATE_CODE": "Code:",
       "INTEGRATE_RESULT": "Result preview:",

www/i18n/locale-en.json

@@ -771,6 +771,7 @@
     "CHECK_NETWORK_CONNECTION": "No peer appears to be accessible.<br/><br/>Please <b>check your Internet connection</b>.",
     "ISSUE_524_TX_FAILED": "Failed to transfer.<br/><br/>A message has been sent to developers to help solve the problem.<b>Thank you for your help</b>.",
     "ADD_SECONDARY_WALLET_FAILED": "Unable to add secondary wallet.",
+    "REMOVE_SECONDARY_WALLET_FAILED": "Unable to remove secondary wallet.",
     "UPDATE_WALLET_LIST_FAILED": "Unable to refresh the list of wallets.",
     "LOAD_WALLET_LIST_FAILED": "Unable to load the list of wallets.",
     "SAVE_WALLET_LIST_FAILED": "Unable to save the list of wallets.",