Survey QR code reader right in the App #3639
Description
Reading the QR code to join a survey currently requires a different app (usually camera app, but on a lot of older devices, people still have to install a separate app, which is often some bloaty trash app).
Occasionally, it also creates problems, because Ground is then started within that other app.
Ideally, we would have a "Join a survey" button in the survey overview, from where the survey QR code can be read right from Ground itself.
Could look something like this:
