add tests for sort picker and update select tests

frontend/app/tests/utils.tsx

@@ -1,13 +1,16 @@
 import { h, ComponentChild } from 'preact';
 import { IntlProvider } from 'react-intl';
 import { render as originalRender } from '@testing-library/preact';
+import { Provider } from 'react-redux';
 
 import en from 'locales/en.json';
+import { mockStore } from '__stubs__/store';
+import { StoreState } from 'store';
 
-export function render(children: ComponentChild) {
+export function render(children: ComponentChild, s: Partial<StoreState> = {}) {
   return originalRender(
     <IntlProvider locale="en" messages={en}>
-      {children}
+      <Provider store={mockStore(s)}>{children}</Provider>
     </IntlProvider>
   );
 }