docs: add screenshot for enabling native lucide icon pack

Author: FlorianWoelki

docs/assets/lucide-native-icon-pack.png

@@ -22,6 +22,10 @@ Obsidian supports Lucide icons by default.
 This native integration brings several advantages, such as there is no additional download required and sync seamlessly across all your devices.
 That's why I highly advise, if you are experiencing syncing issues, exclusively use the Lucide icons for now, which are installed by default, and remove all other icon packs from your Obsidian vault.
 
+When the the native Lucide icon pack is disabled, it will look something like this:
+
+![syncing-icon-packs](../assets/lucide-native-icon-pack.png)
+
 ## Background Checker
 
 ::: tip NOTE