JS frontend stuff

Move old ember frontend to properly named folder
Add vue based new frontend

frontend-vue/tsconfig.vitest.json

@@ -0,0 +1,11 @@
+{
+  "extends": "./tsconfig.app.json",
+  "include": ["src/**/__tests__/*", "env.d.ts"],
+  "exclude": [],
+  "compilerOptions": {
+    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.vitest.tsbuildinfo",
+
+    "lib": [],
+    "types": ["node", "jsdom"]
+  }
+}