chore(docs): move some appicons under img/appicons (#1635)

charts/stable/code-server/Chart.yaml

@@ -6,7 +6,7 @@ dependencies:
   version: 8.9.26
 description: Run VS Code on any machine anywhere and access it in the browser.
 home: https://github.com/truecharts/apps/tree/master/charts/stable/code-server
-icon: https://truecharts.org/_static/img/appicons/code-server-icon.png
+icon: https://truecharts.org/_static/img/appicons/codeserver-icon.png
 keywords:
 - code
 - vs

charts/stable/collabora-online/Chart.yaml

@@ -8,7 +8,7 @@ deprecated: false
 description: "Collabora Online Development Edition \u2013 an awesome, Online Office\
   \ suite image suitable for home use."
 home: https://github.com/truecharts/apps/tree/master/charts/stable/collabora-online
-icon: https://truecharts.org/_static/img/appicons/collabora-online-icon.png
+icon: https://truecharts.org/_static/img/appicons/collabora-icon.png
 keywords:
 - collabora-online
 kubeVersion: '>=1.16.0-0'