Add default ruby configuration for visual studio code (#1958)

* Add default ruby configuration for visual studio code

* fix linting violating in package.json

Author: jenenliu

vscode/package.json

@@ -536,6 +536,14 @@
         "**/bower_components": true,
         "**/*.code-search": true,
         "**/.ruby-lsp": true
+      },
+      "[ruby]": {
+        "editor.defaultFormatter": "Shopify.ruby-lsp",
+        "editor.formatOnSave": true,
+        "editor.tabSize": 2,
+        "editor.insertSpaces": true,
+        "editor.semanticHighlighting.enabled": true,
+        "editor.formatOnType": true
       }
     }
   },