const message in app/filtering.js should be translatable

[luixxiul]

Describe the issue you encountered:
const message = Allow ${host} to ${permissions[permission].action}?`` in app/filtering.js should be translatable. If not:

This applies to all of the permissions like media and geolocation.

• Brave Version: 0.11.1 Beta1
• Any related issues: Make "About Brave" in one string #2505 Strings inside notification bar cannot be translated #2201 "Quit Brave" into one word on Transifex #1659 permission prompt strings need to be localized #1493