fix error in console
```
react_devtools_backend.js:4061 Warning: validateDOMNesting(...): <div> cannot appear as a descendant of <p>.
in div (created by AppSwitcher)
in span (created by AppSwitcher)
in p (created by AppSwitcher)
in li (created by AppSwitcher)
in ul (created by AppSwitcher)
in div (created by AppSwitcher)
in AppSwitcher (created by LeftLayoutAside)
in aside (created by LeftLayoutAside)
in LeftLayoutAside (created by App)
in div (created by App)
in DndProvider (created by App)
in App (created by ConnectedApp)
in ConnectedApp (created by AppWithProvider)
in ModalProvider (created by AppWithProvider)
in AppWithProvider (created by Context.Consumer)
in Route (created by RootComponent)
in Router (created by RootComponent)
in RootComponent (created by HotExportedRootComponent)
in AppContainer (created by HotExportedRootComponent)
in HotExportedRootComponent (created by RootProvider)
in Provider (created by RootProvider)
in RootProvider
```