Setup cypress (#3436)

* Setup Cypress tests for box and button

* Add container tests

* Add Cypress workflow

* Use npm install

* Update Cypress workflow

* Add Jekyll build

* Test other action

* Test custom setup

* Use other ruby action

* Test without flag

* Move cypress to docs folder

* Record runs

* Add Content, Icon, Image specs

* Add Notification specs

* Add Progress and Table specs

* Add Tags specs

* Add Title specs

* Add breadcrumb specs

* Add more specs

* Add media specs

* Add menu specs

* Add modal specs

* Add navbar specs

* Add pagination specs

* Add panel specs

* Add tabs specs, Add form checkbox radio specs

* Add utils

* Add file specs

* Add input textarea specs

* Add select specs

* Add form tools specs

* Add other elements specs

* Add footer and hero specs

* Add Hero specs

* Add section specs

* Add grid specs

* Add column sizes specs

* Add tiles specs

* Add generic specs

* Fix generic tests

* Make font family test looser

* Remove system-ui test

* Remove important flag

* Fix disabled select color

docs/cypress/plugins/index.js

@@ -0,0 +1,22 @@
+/// <reference types="cypress" />
+// ***********************************************************
+// This example plugins/index.js can be used to load plugins
+//
+// You can change the location of this file or turn off loading
+// the plugins file with the 'pluginsFile' configuration option.
+//
+// You can read more here:
+// https://on.cypress.io/plugins-guide
+// ***********************************************************
+
+// This function is called when a project is opened or re-opened (e.g. due to
+// the project's config changing)
+
+/**
+ * @type {Cypress.PluginConfig}
+ */
+// eslint-disable-next-line no-unused-vars
+module.exports = (on, config) => {
+  // `on` is used to hook into various events Cypress emits
+  // `config` is the resolved Cypress config
+}