Adding protonapps.com as Supported Source

[monorailsmoothie]

Prerequisites

Describe the feature

Hi, would you consider adding protonapps.com as Supported Source?

I believe the following pages could be scraped:

• https://protonapps.com/protonmail-android
• https://protonapps.com/protoncalendar-android
• https://protonapps.com/protondrive-android
• https://protonapps.com/protonvpn-android
• https://protonapps.com/protonpass-android

Describe alternatives you've considered (if applicable)

Additional context

[monorailsmoothie]

I just found out that this was already requested in issue #606, my apologies.