feat: add Telegram

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: mathix420

content/telegram.json

@@ -0,0 +1,15 @@
+{
+  "id": "telegram",
+  "name": "Telegram",
+  "description": "Cloud-based messaging across devices with optional end-to-end encryption",
+  "url": "https://web.telegram.org/",
+  "logo": "https://ftwa.mathix.dev/icons/telegram/regular.png",
+  "macLogo": "https://ftwa.mathix.dev/icons/telegram/mac.png",
+  "screenshot": "/screenshot/telegram.png",
+  "tags": [
+    "chat",
+    "communication",
+    "social"
+  ],
+  "logoSize": 512
+}