Fix for #9673 (#9680)

* Fix for #9673

* 🦋 add changeset file

* Update breezy-plants-smoke.md

Co-authored-by: Florian Lefebvre <contact@florian-lefebvre.dev>

* ⚡️ simplified normalizeConfigPath

---------

Co-authored-by: Florian Lefebvre <contact@florian-lefebvre.dev>

.changeset/breezy-plants-smoke.md

@@ -0,0 +1,5 @@
+---
+"astro": patch
+---
+
+Fixes types generation from Content Collections config file

packages/astro/src/content/types-generator.ts

@@ -333,6 +333,22 @@ function invalidateVirtualMod(viteServer: ViteDevServer) {
 	viteServer.moduleGraph.invalidateModule(virtualMod);
 }
 
+/**
+ * Takes the source (`from`) and destination (`to`) of a config path and
+ * returns a normalized relative version:
+ *  -   If is not relative, it adds `./` to the beginning.
+ *  -   If it ends with `.ts`, it replaces it with `.js`.
+ *  -   It adds `""` around the string.
+ * @param from Config path source.
+ * @param to Config path destination.
+ * @returns Normalized config path.
+ */
+function normalizeConfigPath(from: string, to: string) {
+	const configPath = path.relative(from, to).replace(/\.ts$/, '.js');
+
+	return `"${isRelativePath(configPath) ? '' : './'}${configPath}"` as const;
+}
+
 async function writeContentFiles({
 	fs,
 	contentPaths,
@@ -415,18 +431,11 @@ async function writeContentFiles({
 		fs.mkdirSync(contentPaths.cacheDir, { recursive: true });
 	}
 
-	let configPathRelativeToCacheDir = normalizePath(
-		path.relative(contentPaths.cacheDir.pathname, contentPaths.config.url.pathname)
+	const configPathRelativeToCacheDir = normalizeConfigPath(
+		contentPaths.cacheDir.pathname,
+		contentPaths.config.url.pathname
 	);
 
-	if (!isRelativePath(configPathRelativeToCacheDir))
-		configPathRelativeToCacheDir = './' + configPathRelativeToCacheDir;
-
-	// Remove `.ts` from import path
-	if (configPathRelativeToCacheDir.endsWith('.ts')) {
-		configPathRelativeToCacheDir = configPathRelativeToCacheDir.replace(/\.ts$/, '');
-	}
-
 	for (const contentEntryType of contentEntryTypes) {
 		if (contentEntryType.contentModuleTypes) {
 			typeTemplateContent = contentEntryType.contentModuleTypes + '\n' + typeTemplateContent;
@@ -436,7 +445,7 @@ async function writeContentFiles({
 	typeTemplateContent = typeTemplateContent.replace('// @@DATA_ENTRY_MAP@@', dataTypesStr);
 	typeTemplateContent = typeTemplateContent.replace(
 		"'@@CONTENT_CONFIG_TYPE@@'",
-		contentConfig ? `typeof import(${JSON.stringify(configPathRelativeToCacheDir)})` : 'never'
+		contentConfig ? `typeof import(${configPathRelativeToCacheDir})` : 'never'
 	);
 
 	await fs.promises.writeFile(