chore: update uninstall docs

Author: lukepolo

uninstall.md

@@ -1,11 +1,40 @@
 # Uninstalling 5Stack Panel
 
-To uninstall the 5Stack Panel, you can run
+Follow the steps below to completely remove the 5Stack Panel, all game nodes, and related components from your system.
+
+---
+
+## Uninstall Panel and Game Nodes
+
+### Main Panel Server
+
+Run the following command on the main panel server:
 
 ```bash
 /usr/local/bin/k3s-uninstall.sh
 ```
 
+## Game Server Nodes
+
+Run the following command on each game server node:
+
+```bash
+/usr/local/bin/k3s-agent-uninstall.sh
+```
+
+:::warning
+Tailscale should be removed next. Follow the instructions below.
+:::
+
+## Remove Tailscale
+
+```bash
+tailscale logout
+rm -rf /var/lib/tailscale/tailscaled.state
+```
+
+## 5Stack Panel Files
+
 Then you will want to remove all files associated with 5Stack Panel under `/opt/5stack`
 
 ```bash