Add component testing

apps/files/js/app.js

apps/files/js/filelist.js

apps/files/lib/Controller/ApiController.php

apps/files/lib/Service/UserConfig.php

apps/files/src/views/Navigation.cy.ts

apps/files/src/views/Navigation.vue

apps/files/src/views/Settings.vue

build/files-checker.php

cypress.config.ts

cypress/support/component-index.html

cypress/support/component.ts

dist/comments-comments-app.js

dist/comments-comments-app.js.map

dist/comments-comments-tab.js.map

dist/comments-comments.js.map

dist/core-files_client.js.map

dist/core-files_fileinfo.js.map

dist/core-install.js.map

dist/core-login.js

dist/core-login.js.map