fix: exchange function name of component Try-it-out (#4687)

src/core/containers/OperationContainer.jsx

@@ -113,11 +113,11 @@ export default class OperationContainer extends PureComponent {
     layoutActions.show(["operations", tag, operationId], !isShown)
   }
 
-  onTryoutClick =() => {
+  onCancelClick=() => {
     this.setState({tryItOutEnabled: !this.state.tryItOutEnabled})
   }
 
-  onCancelClick =() => {
+  onTryoutClick =() => {
     let { specActions, path, method } = this.props
     this.setState({tryItOutEnabled: !this.state.tryItOutEnabled})
     specActions.clearValidateParams([path, method])