Add and configure ESLint and update configuration for Prettier (#391)

* Apply ESLint config and update Prettier

* Update dependencies and rebuild

* Update docs

.github/workflows/test-dotnet.yml

@@ -34,4 +34,4 @@ jobs:
         run: |
           $version = & dotnet --version
           Write-Host "Installed version: $version"
-          if (-not $version.StartsWith("${{ matrix.dotnet-version }}")) { throw "Unexpected version" }
+          if (-not $version.StartsWith("${{ matrix.dotnet-version }}")) { throw "Unexpected version" }