1.3.0+4

1. UI overhaul
   1. Switch to bottom bar navigation
   2. Display a progress bar
   3. Show the total number of problems on bottom bar
   4. Have a dedicate page to show problematic certificates
   5. Auto run in the back ground even if a user doesn't scroll the listview
   6. Added a new certificate detailed page
   7. Added a popup to show agreement
   8. Android version uses an intent to link to user installed certificates.
2. Client app will report statistics to the backend (Windows version currently doesn't support this yet, pending flutter/flutter#41719 )
3. Client app supports distrusting a certificate; various OSes will have different behaviors. (Windows version is not confirmed working yet, but at least manual instruction should be in line with the Microsoft documentation)