Add ssr test

spec/home.ssr.spec.tsx

@@ -0,0 +1,26 @@
+import { test, expect } from "vitest"
+import { renderToString } from "react-dom/server"
+import { NostoProvider, NostoHome, NostoPlacement } from "../src/index"
+import RecommendationComponent from "./renderer"
+
+test("Home page server-side render", async () => {
+  const origWindow = global.window
+  try {
+    // @ts-expect-error SSR emulation
+    global.window = undefined  
+
+    const html = renderToString(
+      <NostoProvider account="dummy-account" recommendationComponent={<RecommendationComponent />} loadScript={true}>
+        <NostoPlacement id="frontpage-nosto-1" />
+        <NostoPlacement id="frontpage-nosto-2" />
+        <NostoHome />
+      </NostoProvider>
+    )
+
+    // Check if the rendered HTML contains the expected elements
+    expect(html).toContain('id="frontpage-nosto-1"')
+    expect(html).toContain('id="frontpage-nosto-2"')
+  } finally {
+    global.window = origWindow
+  }
+})

spec/useLoadClientScript.spec.tsx

@@ -3,7 +3,7 @@ import { renderHook } from "@testing-library/react"
 import { useLoadClientScript } from "../src/hooks/useLoadClientScript"
 import scriptLoader from "../src/hooks/scriptLoader"
 import "@testing-library/jest-dom/vitest"
-import { nostojs, isNostoLoaded, getNostoWindow } from "@nosto/nosto-js"
+import { nostojs, isNostoLoaded } from "@nosto/nosto-js"
 
 function loadClientScript(merchant: string) {
   const script = document.createElement("script")