refactor(tests): rename test1 to class and export resolve function

The test1 directory and its associated files have been renamed to 'class'
to better reflect the test's purpose. The 'resolve' function in the test
spec file has also been made exportable for potential reuse in other tests.

Author: ryoppippi

tests/test1/Input.svelte tests/class/Input.sveltetests/test1/Input.svelte renamed to tests/class/Input.svelte

@@ -3,11 +3,11 @@ import path from 'node:path';
 import { expect, it } from 'vitest';
 import { compiler } from '../compiler';
 
-function resolve(file: string) {
+export function resolve(file: string) {
 	return path.resolve(__dirname, file);
 }
 
-it('test1', async () => {
+it('load css module for class', async () => {
 	const filename = resolve('Input.svelte');
 
 	const source = await fs.readFile(filename, 'utf-8');