Modify the csproj file so that it can be deployed correctly to an Azure app service

[jameswestgate]

When trying to deploy the demo to an Azure app service, you encounter the following issue:

dotnet/sdk#251
https://stackoverflow.com/questions/43320772/the-publish-target-is-not-supported-without-specifying-a-target-framework

The csproj file needs to be edited so that the instead of you use . Since only .net 6.0 is targeted, this isn't a problem.

[codecov-commenter]

Codecov Report

Merging #383 (2e9464f) into master (5e72564) will not change coverage.
The diff coverage is n/a.

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@@           Coverage Diff           @@
##           master     #383   +/-   ##
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  Coverage   76.80%   76.80%           
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  Files          89       89           
  Lines        2531     2531           
  Branches      427      427           
=======================================
  Hits         1944     1944           
  Misses        466      466           
  Partials      121      121           

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[Regenhardt]

There's way more in this PR than just the csproj change though, how about the whole new project and lots of config files, I think those weren't supposed to be included?

[Regenhardt]

I have temporarily deployed a demo app using these packages without having to modify their project files, it seems to work fine for me:

https://fido2-blazordemo.azurewebsites.net

[jameswestgate]

Extra commits have been added to the pull request. Apologies. Im also guessing that perhaps this issue is being resolved by an update to VS. The only relevant commit is 66566c8

I suggest we close this pull request.