* [NET-5688] APIGateway UI Topology Fixes (#19657)
* Update catalog and ui endpoints to show APIGateway in gateway service
topology view
* Added initial implementation for service view
* updated ui
* Fix topology view for gateways
* Adding tests for gw controller
* remove unused args
* Undo formatting changes
* Fix call sites for upstream/downstream gw changes
* Add config entry tests
* Fix function calls again
* Move from ServiceKey to ServiceName, cleanup from PR review
* Add additional check for length of services in bound apigateway for
IsSame comparison
* fix formatting for proto
* gofmt
* Add DeepCopy for retrieved BoundAPIGateway
* gofmt
* gofmt
* Rename function to be more consistent
* updated ui assets
John Maguire