chore(apps): update icons (#3156)

* chore(apps): update icons

* bump everything

charts/stable/nextcloud/Chart.yaml

@@ -20,7 +20,7 @@ deprecated: false
 description: A private cloud server that puts the control and security of your own
   data back into your hands.
 home: https://github.com/truecharts/apps/tree/master/charts/stable/nextcloud
-icon: https://truecharts.org/img/appicons/nextcloud.png
+icon: https://truecharts.org/img/chart-icons/nextcloud.png
 keywords:
 - nextcloud
 - storage
@@ -37,7 +37,7 @@ sources:
 - https://github.com/nextcloud/docker
 - https://github.com/nextcloud/helm
 type: application
-version: 15.2.9
+version: 15.2.10
 annotations:
   truecharts.org/catagories: |
     - cloud