* remove page view provider
* sanatize current_url and ip properties in all posthog events
* add posthog usage info in README
* remove unneccessary ip property removal since we disable ip collection on posthog side
* add back ip sanitization on client side (we disabled it on server side but may as well also clear it on client) and revise README on telemetry
* add typo with asterisks in readme
* small grammar fix in README