[SyliusBridge] Should not rely on UI classes for JS behavior.

[loic425]

💭 thought: ‏Maybe we should not rely on UI classes for JS behavior.

Originally posted by @damienalexandre in #96 (comment)

element.addEventListener('click', (event) => {
    event.preventDefault();
    const button = event.currentTarget;
    const label = button.querySelector('.btn-label');

const configureDirectoryCreate = () => {
    const createDirectoryForm = document.querySelector('[data-component="directory-create-form"]');
    const createDirectoryInput = createDirectoryForm?.querySelector('.directory-create-input');
    const createDirectoryCancelBtn = createDirectoryForm?.querySelector('.directory-create-cancel-btn');