modernize frontend-embed to target the same ES and TS standards as the rest of the app

packages/frontend-embed/tsconfig.vue.json

@@ -0,0 +1,30 @@
+{
+	"$schema": "https://json.schemastore.org/tsconfig",
+	"extends": "../shared/tsconfig.web.json",
+	"compilerOptions": {
+		"paths": {
+			"@/*": ["./src/*"],
+			"@@/*": ["../frontend-shared/*"]
+		},
+		"typeRoots": [
+			"./@types",
+			"./node_modules/@types",
+			"./node_modules/@vue-macros",
+			"./node_modules"
+		],
+		"types": [
+			"vite/client"
+		],
+		"jsx": "preserve"
+	},
+	"include": [
+		"./src/**/*.ts",
+		"./src/**/*.vue",
+		"./@types/**/*.ts",
+		"./vue-shims.d.ts"
+	],
+	"exclude": [
+		"node_modules",
+		".storybook/**/*"
+	]
+}