Add powershell extension to devcontainer.json

.devcontainer/devcontainer.json

@@ -14,6 +14,7 @@
     "davidanson.vscode-markdownlint",
     "dotjoshjohnson.xml",
     "ms-vscode-remote.remote-containers",
-    "ms-azuretools.vscode-docker"
+    "ms-azuretools.vscode-docker",
+    "ms-vscode.powershell"
   ]
 }

.editorconfig

@@ -30,6 +30,7 @@ indent_size = 2
 # JSON files
 [*.json]
 indent_size = 2
+indent_style = space
 
 # Dotnet code style settings:
 [*.{cs,vb}]