Add news for the cards theme

Author: razonyang

content/news/theme-cards/index.en.md

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+---
+title: "HB Cards Theme is Out"
+date: 2023-12-05T13:14:52+08:00
+draft: true
+series:
+  - News
+categories:
+  - Themes
+tags:
+  - Cards
+images:
+  - https://raw.githubusercontent.com/hbstack/theme-cards/main/images/screenshot.png?height=1920&width=1280
+authors:
+  - HB
+---
+
+We're proud to announce that our new [cards theme]({{< relref "/themes/cards" >}}) is available now.

content/news/theme-cards/index.zh-hans.md

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+---
+title: "HB 卡片主题已发布"
+date: 2023-12-05T13:14:52+08:00
+draft: false
+series:
+  - 新闻
+categories:
+  - 主题
+tags:
+  - 卡片
+images:
+  - https://raw.githubusercontent.com/hbstack/theme-cards/main/images/screenshot.png?height=1920&width=1280
+authors:
+  - HB
+---
+
+我们很荣幸地宣布，我们的新[卡片主题]({{< relref path="/themes/cards" lang="en" >}})现在可用了。

content/news/theme-cards/index.zh-hant.md

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+---
+title: "HB 卡片主題已釋出"
+date: 2023-12-05T13:14:52+08:00
+draft: false
+series:
+  - 新聞
+categories:
+  - 主題
+tags:
+  - 卡片
+images:
+  - https://raw.githubusercontent.com/hbstack/theme-cards/main/images/screenshot.png?height=1920&width=1280
+authors:
+  - HB
+---
+
+我們很榮幸地宣佈，我們的新[卡片主題]({{< relref path="/themes/cards" lang="en" >}})現在可用了。