Removed default values from `marketplaceViewProps` – we are now handling this in the tracking function.
Changed `selectedTab` dependency of `useEffect` hook in content.tsx to `query?.tab`. The `selectedTab` state was being reset after (or at least not at the same time as) the change of the tab param in the query string. For this reason, we were recording two page views when you changed from Extensions tab and Shipping category to Themes tab. This doesn't seem to break anything! We are still setting the `selectedTab` based on the query string in the `Tabs` component, so they should still be in sync.
Removed the condition skipping marketplace page view when there was no `prop.view`. This meant that when you switched to the Discovery tab from another tab, we weren't recording the page view.
Also setting default category prop `_all` when no category is specified on extensions, themes and search tabs. This allows us to bundle the default views of those tabs with the views got by clicking on the "All" category link.
Addressing linter errors.
e76a88aa07