fix: update docs without banner and with proper telegram links

docs/farming/buy-node.md

@@ -26,7 +26,7 @@ Several vendors offer certified ThreeFold nodes:
 
 Check the official ThreeFold channels for current list of certified node providers:
 - [ThreeFold Shop](https://threefold.io) - Official vendor listings
-- [Telegram Community](https://t.me/threefoldfarmers) - Vendor recommendations
+- [Telegram Community](https://t.me/threefold/1) - Vendor recommendations
 - [Forum Marketplace](https://forum.threefold.io) - Community sales
 
 </div>
@@ -179,5 +179,5 @@ Once you have your hardware (or know what you'll buy), move on to:
 
 :::tip Need Help Deciding?
 
-Ask the community! The [ThreeFold Telegram](https://t.me/threefoldfarmers) has experienced farmers who can help you choose the right option for your situation.
+Ask the community! The [ThreeFold Telegram](https://t.me/threefold/1) has experienced farmers who can help you choose the right option for your situation.
 :::

docs/farming/overview.md

@@ -91,7 +91,7 @@ Every farmer plays a vital role in creating a truly decentralized internet.
 
 - **Dashboard**: [dashboard.grid.tf](https://dashboard.grid.tf) - Manage your farm
 - **Manual**: [manual.grid.tf/farmers](https://manual.grid.tf/farmers) - Detailed technical docs
-- **Community**: [t.me/threefoldfarmers](https://t.me/threefoldfarmers) - Get help from farmers
+- **Community**: [t.me/threefold](https://t.me/threefold/1) - Get help from the community
 - **Forum**: [forum.threefold.io](https://forum.threefold.io) - Discussions and updates
 
 ---

docs/farming/setup.md

@@ -218,7 +218,7 @@ For more details, check the advanced manual:
 **Resources:**
 - [Manual](https://manual.grid.tf/farmers) - Comprehensive farming guide
 - [Dashboard](https://dashboard.grid.tf) - Manage your farm
-- [Telegram](https://t.me/threefoldfarmers) - Community support
+- [Telegram](https://t.me/threefold/1) - Community support
 - [Forum](https://forum.threefold.io) - Discussions and updates
 
 ---