Prevent tailwind config errors from crashing dev server (#5270)

* Prevent tailwind config errors from crashing dev server

* Adding a changeset

* Fix wrong type

.changeset/long-turtles-run.md

@@ -0,0 +1,5 @@
+---
+'@astrojs/tailwind': patch
+---
+
+Prevent errors during HMR from crashing dev server

packages/integrations/tailwind/src/index.ts

@@ -40,13 +40,14 @@ async function getUserConfig(root: URL, configPath?: string, isRestart = false)
 		const tempConfigPath = path.join(dir, `.temp.${Date.now()}.${base}`);
 		await fs.copyFile(resolvedConfigPath, tempConfigPath);
 
-		const result = await load('tailwind', {
+		let result: load.Config<Record<any, any>> | undefined;
-			mustExist: false,
-			cwd: resolvedRoot,
-			filePath: tempConfigPath,
-		});
-
 		try {
+			result = await load('tailwind', {
+				mustExist: false,
+				cwd: resolvedRoot,
+				filePath: tempConfigPath,
+			});
+
 			await fs.unlink(tempConfigPath);
 		} catch {
 			/** file already removed */