Fix button styling in verification bubbles

src/components/views/messages/MKeyVerificationRequest.tsx

@@ -154,7 +154,7 @@ export default class MKeyVerificationRequest extends React.Component<IProps> {
                     <AccessibleButton kind="danger" onClick={this.onRejectClicked}>
                         {_t("Decline")}
                     </AccessibleButton>
-                    <AccessibleButton onClick={this.onAcceptClicked}>
+                    <AccessibleButton kind="primary" onClick={this.onAcceptClicked}>
                         {_t("Accept")}
                     </AccessibleButton>
                 </div>);