chore(apps): update icons (#3156)

* chore(apps): update icons

* bump everything

charts/stable/wekan/Chart.yaml

@@ -10,7 +10,7 @@ dependencies:
   version: 1.0.32
 description: WeKan - Open Source kanban
 home: https://github.com/truecharts/apps/tree/master/charts/stable/wekan
-icon: https://truecharts.org/img/appicons/wekan.png
+icon: https://truecharts.org/img/chart-icons/wekan.png
 keywords:
 - wekan
 - kanban
@@ -23,7 +23,7 @@ name: wekan
 sources:
 - https://github.com/wekan/wekan
 - https://wekan.github.io/
-version: 4.0.17
+version: 4.0.18
 annotations:
   truecharts.org/catagories: |
     - productivity