Update survey link in the project template for Blazor 0.8.0

[danroth27]

Blazor 0.8.0 survey link: https://go.microsoft.com/fwlink/?linkid=2041371 https://go.microsoft.com/fwlink/?linkid=2069004

[SteveSandersonMS]

That URL is the same one you put in for 0.7.0 in this commit: 71cddc3

Is there a different URL for 0.8.0?

[danroth27]

Sorry about that: https://go.microsoft.com/fwlink/?linkid=2069004