* Add theme step to onboarding profiler
* Add installed themes to onboarding theme data
* Add theme status for install themes in frontend
* Add regex test to check for WooCommerce theme support
* Add woocommerce not supported icon and tooltips
* Cache installed themes for performance
* Update themes endpoint to use real wccom endpoint
* Update error icon to use info gridicon
* Add theme data to wcSettings onboarding data
* Add theme step to onboarding profiler
* Use free in place of price if theme is <= 0
* Add theme paid/free filter tabs