Fix teams package for Linux compatibility

- Replace teams (macOS-only) with teams-for-linux
- Resolves platform compatibility issue for ISO builds

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

modules/packages.nix

@@ -264,7 +264,7 @@ in
         signal-desktop
         element-desktop
         zoom-us
-        teams
+        teams-for-linux
 
         # Office
         libreoffice