Add utm query parameters to internal pwa links

[NicoHood]

Is your feature request related to a problem? Please describe.
I'd like to track which links are clicked by the app and which not. It would be nice to add utm query parameters for that.

Describe the solution you'd like
Here is a possible solution described:
https://stackoverflow.com/questions/54580414/how-can-i-detect-if-my-website-is-opened-inside-a-trusted-web-actvity

Describe alternatives you've considered
If there is any other option to track if the site is running via app instead of a browser, that'd be nice. Maybe a special user agent or so.

Additional context
https://ga-dev-tools.web.app/campaign-url-builder/
(This can be used with matomo as well)

[andreban]

Modifying links in the web app is outside the scope of this project, as it focuses on building / launching the app. The link posted would be the best way to do it, indeed.

[NicoHood]

I will use the new start url:

"startUrl": "/?utm_medium=app&utm_source=android&utm_campaign=app-launch-count",