added whitespace formatting

Author: Petr Sramek

.github/workflows/format-cs-files.yml

@@ -34,6 +34,7 @@ jobs:
       with:
         dotnet-version: ${{ vars.DOTNET_SDK_VERSION }}
     - run: |
+        dotnet format whitespace --verify-no-changes --verbosity diagnostic
         dotnet format style --verify-no-changes --verbosity diagnostic
         dotnet format analyzers --verify-no-changes --diagnostics IDE0073 --verbosity diagnostic
         echo "has-changes=false" >> "$GITHUB_OUTPUT"
@@ -44,6 +45,7 @@ jobs:
         echo ${{ steps.validate.outputs.has-changes }}
         echo ${{ steps.validate.outcome }}
     - run: |
+        dotnet format whitespace --verbosity diagnostic
         dotnet format style --verbosity diagnostic
         dotnet format analyzers --diagnostics IDE0073 --verbosity diagnostic
       name: Apply style formatting and file header rule