feat: replace await-to-js with betterr

The library await-to-js was replaced with betterr for error handling.
This change was applied in the getCssModuleImports and getCssModule
functions in the src/utils/css-module.ts file. The package.json and
pnpm-lock.yaml files were updated to reflect this change.

Author: ryoppippi

package.json

@@ -32,7 +32,6 @@
 		"release": "nr typecheck && nr test run && nr build && nlx publint && nlx bumpp && npm publish"
 	},
 	"dependencies": {
-		"await-to-js": "^3.0.0",
 		"camelcase-keys": "^9.1.3",
 		"defu": "^6.1.4",
 		"knitwork": "^1.1.0",
@@ -51,6 +50,7 @@
 		"@ryoppippi/eslint-config": "npm:@jsr/ryoppippi__eslint-config",
 		"@sveltejs/kit": "^2.5.20",
 		"@types/node": "^22.1.0",
+		"betterr": "^5.1.0",
 		"eslint": "^9.8.0",
 		"eslint-plugin-format": "^0.1.2",
 		"eslint-plugin-svelte": "^2.43.0",

pnpm-lock.yaml

@@ -1,11 +1,11 @@
 import { readFile } from 'node:fs/promises';
 import camelcaseKeys from 'camelcase-keys';
-import to from 'await-to-js';
 import { transform } from 'lightningcss';
 import MagicString from 'magic-string';
 import type { StaticImport } from 'mlly';
 import { parseStaticImport, pathToFileURL, resolvePath } from 'mlly';
 import { stringToUint8Array, uint8ArrayToString } from 'uint8array-extras';
+import { betterr } from 'betterr';
 import type { ResolvedOptions } from '../options';
 
 type getCssModuleImportsProps = {
@@ -44,7 +44,7 @@ export async function getCssModuleImports(
 			return { path: s.toString(), defaultImport, imp };
 		}
 
-		const [err, resolved] = await to(resolvePath(specifier, {
+		const { err, data: resolved } = await betterr(async () => resolvePath(specifier, {
 			url: filename == null ? undefined : pathToFileURL(filename),
 		}));
 
@@ -66,7 +66,7 @@ export type CssModule = {
 
 export async function getCssModule({ path, ...rest }: ResolvedModuleImport, options: ResolvedOptions): Promise<CssModule> {
 	const { moduleNameingPattern: pattern } = options;
-	const [err, code] = await to(readFile(path, { encoding: 'utf-8' }));
+	const { err, data: code } = await betterr(async () => readFile(path, { encoding: 'utf-8' }));
 
 	if (err != null) {
 		console.error(`Failed to read css module: ${path}`);