* Return all services except Proxies
* Add Gateway icon to the codebase
* Create and implement ConsulExternalSource component
* Fix tests to work with new mock data and add a Gateway test
* Update consul-api-double to 2.14.3
* Create ConsulServiceInstanceList with styling and test
* Implement ConsulServiceInstanceList to Service Detail page
* Implement ConsulExternalSource to Services Show page header
* Update services/show page object
* Update the styling of CompositeRow
* Refactor ConsulServiceList component and styling
* Update ConsulExternalSource to say 'Registered via...'
* Upgrade consul-api-double to patch 2.14.1
* Fix up tests to not use Kind in service models
* Update ListCollection with clickFirstAnchor action
* Add $typo-size-450 to typography base variables
* Create GridCollection for nodes page with styling
* Update ListCollection styling
* Update TagList styling
* Create CompositeRow styling component
* Update ConsulServiceList component with styling
* Create service health-checks helper
* Add InstanceCount to the service model
* Add tag-svg to codebase
* Create and update tests for service-list page
* Upgrade @hashicorp/consul-api-double to 2.14.0
Adds namespace support to the UI:
1. Namespace CRUD/management
2. Show Namespace in relevant areas (intentions, upstreams)
3. Main navigation bar improvements
4. Logic/integration to interact with a new `internal/acl/authorize` endpoint
