Ask users to refer us to other friends #17234

Description:

refs #16803

Review

• [ ] Functional review done
• [ ] Usability review done (is anything maybe unclear or think about anything that would cause people to reach out to support)
• [ ] Security review done see checklist
• [ ] Code review done
• [ ] Tests were added if useful/possible
• [ ] Reviewed for breaking changes
• [ ] Developer changelog updated if needed
• [ ] Documentation added if needed
• [ ] Existing documentation updated if needed

I haven't find a way to share on mastodon with a link, so that button is hidden on the ui.
The FB share currently not working, as matomo.org is on spam-list at FB.

I fixed a small bug with the feedback popup: it called the remindMeLater method even when the user clicked on the never remind me button, so actually the user was reminded again in 90 days.

@flamisz If you want to make it a bit more complex, you could add a input field for people to enter their Mastodon URL and then redirect them to https://mastodon.example/share?text=the%20text

One minor thing, before I forget:
All texts should probably be translatable.

@Findus23 yes, that's a good point. for sure it should be. I will do that