Default Params not Honored in Chrome

To recreate,

• open the application in Chrome
• select the non-default feed
• clear the query params
• reload the URL with no query params

The default feed will not be loaded, the current parameters are stored in localStorage and loaded from there.

This is related to the isStandAlone() check in "pwa.service.ts". It thinks that in chrome on desktop that the application is running the PWA in standalone mode.

Fixes the following issues, test the solution using these issues:

• Loading legacy hash fragment into new application settings, #234 (closed)
• Loading application settings from URL not working, #240 (closed)