Handle browser intent from other apps properly. Sometime settings is opened instead of browser activity.

[arunkumar9t2]

Currently some apps can send ACTION_VIEW intents targeting the MainActivity instead of BrowserInterceptActivity. This can happen when apps try to do getLaunchIntentForPackage() instead of manually targeting the specific component. Need to add defensive code to handle the case in MainActivity. Some apps that do this: Join, Link bubble etc.