chore(docs): Remove -icon string from icon png's (#2040)

* rename icons (remove `-icon`)

* Remove (`-icon`) from chart.yaml

* Add 2 icons

* slight format change

* remove -icon

charts/stable/home-assistant/Chart.yaml

@@ -11,7 +11,7 @@ dependencies:
 deprecated: false
 description: home-assistant App for TrueNAS SCALE
 home: https://github.com/truecharts/apps/tree/master/charts/stable/home-assistant
-icon: https://truecharts.org/_static/img/appicons/home-assistant-icon.png
+icon: https://truecharts.org/_static/img/appicons/home-assistant.png
 keywords:
 - home-assistant
 - hass