feat(vscode): add typescript language support for volar

.vscode/extensions.json

@@ -0,0 +1,3 @@
+{
+  "recommendations": ["johnsoncodehk.volar", "johnsoncodehk.vscode-typescript-vue-plugin"]
+}

.vscode/settings.json

@@ -0,0 +1,4 @@
+{
+  "typescript.tsdk": "node_modules/typescript/lib",
+  "typescript.enablePromptUseWorkspaceTsdk": true,
+}