chore: modman inital setup

src/ModManUi/vitest.config.ts

@@ -0,0 +1,13 @@
+import { fileURLToPath } from "node:url";
+import { mergeConfig, defineConfig } from "vitest/config";
+import viteConfig from "./vite.config";
+
+export default mergeConfig(
+  viteConfig,
+  defineConfig({
+    test: {
+      environment: "jsdom",
+      root: fileURLToPath(new URL("./", import.meta.url)),
+    },
+  }),
+);