* Change all instances of yield/block-slots to use attributes over positional arguments
* Remove the ability to use yield/block-slots with positional params
- Removes 'type' icons (basically the proxy icon, not the text itself)
- Add support for Mesh Gateways plus their addresses
This adds a 'Mesh Gateway' type label to service and service instance
pages, plus a new 'Addresses' tab if the service is a Mesh Gateway
showing a table of addresses for the service - plus tests