s/Cancel/Reject/ on confirm screen for clarity

app/_locales/en/messages.json

@@ -784,6 +784,12 @@
   "refundAddress": {
     "message": "Your Refund Address"
   },
+  "reject": {
+    "message": "Reject"
+  },
+  "rejectTxsN": {
+    "message": "Reject $1 transactions"
+  },
   "rejected": {
     "message": "Rejected"
   },

ui/app/components/confirm-page-container/confirm-page-container.component.js

@@ -116,6 +116,7 @@ export default class ConfirmPageContainer extends Component {
         }
         <PageContainerFooter
           onCancel={() => onCancel()}
+          cancelText={this.context.t('reject')}
           onSubmit={() => onSubmit()}
           submitText={this.context.t('confirm')}
           submitButtonType="confirm"
@@ -123,7 +124,7 @@ export default class ConfirmPageContainer extends Component {
         >
           {unapprovedTxCount > 1 && (
             <a onClick={() => onCancelAll()}>
-              {this.context.t('cancelN', [unapprovedTxCount])}
+              {this.context.t('rejectTxsN', [unapprovedTxCount])}
             </a>
           )}
         </PageContainerFooter>