docs: add platform icons to all locales

en/usage/platforms/dingtalk.mdx

@@ -1,7 +1,7 @@
 ---
 title: "Deploy DingTalk Bot"
+icon: "/images/platforms/dingtalk.svg"
 ---
-
 Deploy LangBot to DingTalk.
 
 ## One-Click Setup (Recommended)

en/usage/platforms/discord.mdx

@@ -1,7 +1,9 @@
 ---
 title: "Connect to Discord Bot"
+icon:
+  name: "discord"
+  style: "brands"
 ---
-
 ## Create Bot
 
 Go to the [Discord Developer Portal](https://discord.com/developers/applications), log in, and create an application.

en/usage/platforms/kook.mdx

@@ -1,7 +1,7 @@
 ---
 title: "Integrating KOOK Bot"
+icon: "/images/platforms/kook.png"
 ---
-
 ## Create a Bot
 
 Visit the [KOOK Developer Center](https://developer.kookapp.cn/), log in and access the console.

en/usage/platforms/lark.mdx

@@ -1,7 +1,7 @@
 ---
 title: "Connect to Feishu Bot"
+icon: "/images/platforms/lark.svg"
 ---
-
 ## One-Click Setup (Recommended)
 
 LangBot supports one-click Feishu app creation with automatic credential filling — no manual copy-paste needed.

en/usage/platforms/line.mdx

@@ -1,7 +1,9 @@
 ---
 title: "Integrating LINE Bot"
+icon:
+  name: "line"
+  style: "brands"
 ---
-
 This article explains how to connect LangBot with the LINE platform to implement LINE bot functionality.
 
 ## Creating a LINE Bot

en/usage/platforms/slack.mdx

@@ -1,7 +1,9 @@
 ---
 title: "Connect to Slack Bot"
+icon:
+  name: "slack"
+  style: "brands"
 ---
-
 ## Create Bot
 
 Go to the [Slack App Platform](https://api.slack.com/apps).

en/usage/platforms/telegram.mdx

@@ -1,7 +1,9 @@
 ---
 title: "Connect to Telegram Bot"
+icon:
+  name: "telegram"
+  style: "brands"
 ---
-
 ## Create Bot
 
 Go to the [Telegram Bot Creation Page](https://t.me/botfather), follow the prompts, and create a bot.

en/usage/platforms/webpage.mdx

@@ -1,7 +1,9 @@
 ---
 title: "Web Page Bot"
+icon:
+  name: "globe"
+  style: "solid"
 ---
-
 Embed a LangBot chat widget into any website with a single script tag.
 
 ## Create Bot

en/usage/platforms/wxoa.mdx

@@ -1,7 +1,9 @@
 ---
 title: "Deploy WeChat Official Account Bot"
+icon:
+  name: "weixin"
+  style: "brands"
 ---
-
 Deploy WeChat Official Account bot to connect with LangBot.
 
 ## LangBot WeChat Official Account Integration Modes