[Request] Display Cryostat Agent Topology nodes with Cryostat icon

[andrewazores]

Describe the feature

Currently, all JVM targets on the Topology view are rendered with the OpenJDK Duke icon to represent them.

https://github.com/cryostatio/cryostat-web/blob/main/src/app/assets/openjdk.svg

It would be nice to differentiate JMX targets from Cryostat Agent targets at a quick glance, especially after cryostatio/cryostat-agent#203 .

This could be done quite easily and IMO effectively by using Duke to represent JMX targets, and the Cryostat icon for Agent targets. The Cryostat icon has two variants for light vs dark backgrounds so this should also be accounted for when the icon is rendered - this is already done in ex. the navigation masthead, so that may be a useful reference for how to do the same thing in the Topology view.

https://github.com/cryostatio/cryostat-web/blob/main/src/app/assets/cryostat_icon_rgb_default.svg
https://github.com/cryostatio/cryostat-web/blob/main/src/app/assets/cryostat_icon_rgb_reverse.svg

Anything other information?

No response