Refactor display Text (#1999)

### What problem does this PR solve?

'Api Key' and 'API Document' isn't aligned.

### Type of change

- [x] Refactoring

Signed-off-by: Jin Hai <haijin.chn@gmail.com>

docs/references/api.md

 For Chat API key:
    1. In RAGFlow, click **Chat** tab in the middle top of the page.
    2. Hover over the corresponding dialogue **>** **Chat Bot API** to show the chatbot API configuration page.
-   3. Click **Api Key** **>** **Create new key** to create your API key.
+   3. Click **API Key** **>** **Create new key** to create your API key.
    4. Copy and keep your API key safe. 
 
 For Agent API key:
    1. In RAGFlow, click **Agent** tab in the middle top of the page.
    2. Click your agent **>** ** Chat Bot API** to show the chatbot API configuration page.
-   3. Click **Api Key** **>** **Create new key** to create your API key.
+   3. Click **API Key** **>** **Create new key** to create your API key.
    4. Copy and keep your API key safe. 
 
 ## Create conversation

docs/references/ragflow_api.md

 
 1. In RAGFlow, click **Chat** tab in the middle top of the page.
 2. Hover over the corresponding dialogue **>** **Chat Bot API** to show the chatbot API configuration page.
-3. Click **Api Key** **>** **Create new key** to create your API key.
+3. Click **API Key** **>** **Create new key** to create your API key.
 4. Copy and keep your API key safe. 
 
 ## Create dataset

web/src/locales/en.ts

       preview: 'Preview',
       embedded: 'Embedded',
       serviceApiEndpoint: 'Service API Endpoint',
-      apiKey: 'Api Key',
+      apiKey: 'API Key',
       apiReference: 'API Documents',
       dateRange: 'Date Range:',
       backendServiceApi: 'Backend service API',
       bing: 'Bing',
       bingTip:
         'This component is used to get search result from https://www.bing.com/. Typically, it performs as a supplement to knowledgebases. Top N and Bing Subscription-Key specifies the number of search results you need to adapt.',
-      apiKey: 'Api Key',
+      apiKey: 'API Key',
       country: 'Country',
       language: 'Language',
       googleScholar: 'Google Scholar',

web/src/locales/zh-traditional.ts

       embedded: '嵌入',
       serviceApiEndpoint: '服務 API 端點',
       apiKey: 'API 鍵',
-      apiReference: 'API 文件',
+      apiReference: 'API 文檔',
       dateRange: '日期範圍：',
       backendServiceApi: '後端服務 API',
       createNewKey: '創建新密鑰',
       fullScreenDescription: '將以下iframe嵌入您的網站處於所需位置',
       partialTitle: '部分嵌入',
       extensionTitle: 'Chrome 插件',
-      tokenError: '請先創建 Api Token!',
+      tokenError: '請先創建 API Token!',
       searching: '搜索中',
       parsing: '解析中',
       uploading: '上傳中',
       bing: 'Bing',
       bingTip:
         '此元件用於從 https://www.bing.com/ 取得搜尋結果。通常，它充當知識庫的補充。 Top N 和 Bing Subscription-Key 指定您需要適配的搜尋結果數量。',
-      apiKey: 'Api Key',
+      apiKey: 'API Key',
       country: '國家',
       language: '語言',
       googleScholar: '谷歌學術',

web/src/locales/zh.ts

       fullScreenDescription: '将以下iframe嵌入您的网站处于所需位置',
       partialTitle: '部分嵌入',
       extensionTitle: 'Chrome 插件',
-      tokenError: '请先创建 Api Token!',
+      tokenError: '请先创建 API Token!',
       searching: '搜索中',
       parsing: '解析中',
       uploading: '上传中',
       bing: 'Bing',
       bingTip:
         '此组件用于从 https://www.bing.com/ 获取搜索结果。通常，它作为知识库的补充。Top N 和 Bing Subscription-Key 指定您需要调整的搜索结果数量。',
-      apiKey: 'Api Key',
+      apiKey: 'API Key',
       country: '国家',
       language: '语言',
       googleScholar: '谷歌学术',