ref(dashboards): Simplify WidgetCardChart

[gggritso]

Moving some code around, in preparation to integrate standards widgets.

• Move error handling higher up. Instead of having a bunch of error panels everywhere, check once at the top of the render method
• Move series colorization higher in the component. Moves the code up to reduce nesting, and makes it easier to return early if needed
• Resolve duplication of JSX. Instead of a conditional, pass enabled to ReleaseQueries to prevent unnecessarily loading data