What if we used tabs, though?

[zkxs]

Changes everything to tabs. Removes human-readable whitespace guidelines from CONTRIBUTING.md as they are superseded by editorconfig.

dotnet format doesn't run on csproj or sln files so I've formatted them manually.

THE PRS WILL CONTINUE
UNTIL MORALE IMPROVES

[EIA485]

looks good to me, 4 spaces are also fine if it really matters

[ljoonal]

To note since the previous PR was conserned about github rendering tabs as 8 spaces, that's configurable:

[EIA485]

if its configurable then this seems to be the best option, it can make everyone happy with their visual preference

[zkxs]

The people have spoken, and they are least bothered by tabs.