feat: add 'back/front end' in curriculum (#42596)

* chore: rename APIs and Microservices to include "Backend" (#42515)

* fix typo

* fix typo

* undo change

* Corrected grammar mistake

Corrected a grammar mistake by removing a comma.

* change APIs and Microservices cert title

* update title

* Change APIs and Microservices certi title

* Update translations.json

* update title

* feat(curriculum): rename apis and microservices cert

* rename folder structure

* rename certificate

* rename learn Markdown

* apis-and-microservices -> back-end-development-and-apis

* update backend meta

* update i18n langs and cypress test

Co-authored-by: Shaun Hamilton <shauhami020@gmail.com>

* fix: add development to front-end libraries (#42512)

* fix: added-the-word-Development-to-front-end-libraries

* fix/added-the-word-Development-to-front-end-libraries

* fix/added-word-development-to-front-end-libraries-in-other-related-files

* fix/added-the-word-Development-to-front-end-and-all-related-files

* fix/removed-typos-from-last-commit-in-index.md

* fix/reverted-changes-that-i-made-to-dependecies

* fix/removed xvfg

* fix/reverted changes that i made to package.json

* remove unwanted changes

* front-end-development-libraries changes

* rename backend certSlug and README

* update i18n folder names and keys

* test: add legacy path redirect tests

This uses serve.json from the client-config repo, since we currently use
that in production

* fix: create public dir before moving serve.json

* fix: add missing script

* refactor: collect redirect tests

* test: convert to cy.location for stricter tests

* rename certificate folder to 00-certificates

* change crowdin config to recognise new certificates location

* allow translations to be used

Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>

* add forwards slashes to path redirects

* fix cypress path tests again

* plese cypress

* fix: test different challenge

Okay so I literally have no idea why this one particular challenge
fails in Cypress Firefox ONLY. Tom and I paired and spun a full build
instance and confirmed in Firefox the page loads and redirects as
expected. Changing to another bootstrap challenge passes Cypress firefox
locally. Absolutely boggled by this.

AAAAAAAAAAAAAAA

* fix: separate the test

Okay apparently the test does not work unless we separate it into
a different `it` statement.

>:( >:( >:( >:(

Co-authored-by: Sujal Gupta <55016909+heysujal@users.noreply.github.com>
Co-authored-by: Noor Fakhry <65724923+NoorFakhry@users.noreply.github.com>
Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com>
Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>

curriculum/challenges/chinese/03-front-end-development-libraries/redux/define-a-redux-action.md

@@ -0,0 +1,55 @@
+---
+id: 5a24c314108439a4d403614d
+title: 定义一个 Redux Action
+challengeType: 6
+forumTopicId: 301440
+dashedName: define-a-redux-action
+---
+
+# --description--
+
+由于 Redux 是一个状态管理框架，因此更新状态是其核心任务之一。 在 Redux 中，所有状态更新都由 dispatch action 触发， action 只是一个 JavaScript 对象，其中包含有关已发生的 action 事件的信息。 Redux store 接收这些 action 对象，然后更新相应的状态。 有时，Redux action 也会携带一些数据。 例如，在用户登录后携带用户名， 虽然数据是可选的，但 action 必须带有 `type` 属性，该属性表示此 action 的类型。
+
+我们可以将 Redux action 视为信使，将有关应用程序中发生的事件信息提供给 Redux store， 然后 store 根据发生的 action 进行状态的更新。
+
+# --instructions--
+
+编写 Redux action 就像声明具有 type 属性的对象一样简单， 声明一个对象 `action` 并为它设置一个属性 `type`，并将它的值设置成字符串`'LOGIN'`。
+
+# --hints--
+
+`action` 对象应该存在。
+
+```js
+assert(
+  (function () {
+    return typeof action === 'object';
+  })()
+);
+```
+
+`action` 对象应该有一个值为 `LOGIN` 的 `type` 属性。
+
+```js
+assert(
+  (function () {
+    return action.type === 'LOGIN';
+  })()
+);
+```
+
+# --seed--
+
+## --seed-contents--
+
+```js
+// Define an action here:
+```
+
+# --solutions--
+
+```js
+const action = {
+  type: 'LOGIN'
+}
+```