chore: update vscode/settings.json (#975)

Author: baseballyama

.vscode/settings.json

@@ -7,5 +7,8 @@
 		"source.fixAll.stylelint": "explicit"
 	},
 	"svelte.plugin.typescript.diagnostics.enable": false,
-	"typescript.tsdk": "node_modules/typescript/lib"
+	"typescript.tsdk": "node_modules/typescript/lib",
+	"[typescript]": {
+		"editor.defaultFormatter": "rvest.vs-code-prettier-eslint"
+	}
 }