chore(apps): App-Icon Organization (#1539)

charts/stable/fleet/Chart.yaml

@@ -7,7 +7,7 @@ description: Fleet provides an online web interface which displays a set of main
 type: application
 deprecated: false
 home: https://github.com/truecharts/apps/tree/master/charts/stable/fleet
-icon: https://raw.githubusercontent.com/truecharts/apps/master/stable/fleet/icon.png?raw=true
+icon: https://truecharts.org/_static/img/appicons/fleet-icon.png
 keywords:
   - fleet
 sources: