Links to the F-Droid project result in an http 404 error

**Describe the bug**
There's a link to an F-Droid page on this github, and other places on the net like https://www.twinhelix.com/apps/signal-foss/ Clicking the link gives me a 404 error on F-Droid.

**To Reproduce**
Steps to reproduce the behavior:
https://f-droid.org/repository/browse/?fdid=com.google.android.gms

**Expected behavior**
Not a 404

**Screenshots**
n/a

**System**
Web browser

**Additional context**
n/a

Search the repository and the linked project page for the F-Droid URL `https://f-droid.org/repository/browse/?fdid=com.google.android.gms`. Verify the current F-Droid destination and update the obsolete link wherever it appears; done means the link resolves without an HTTP 404.

Written by the indexing model from the issue text.