Update Event Sources Visualization and SideBar

Description

As a user, I should be able to differentiate between Event Sink and Source

Acceptance Criteria

1. Event source should have 'sign-out-alt' icon on the left side of the label
2. On SideBar it 'Sink URI' Heading should be replaced with 'Target URI'
3. On SideBar it 'Sink' Heading should be replaced with 'Input Target'
4. On Event Source create form replace 'Sink' Section Heading with 'Input Target' and replace description with  "Add an input target to route this Event source to a Channel, Broker, Knative Service or another route."

Additional Details:

Related Design: https://docs.google.com/document/d/1xJ_oYhfFDJO8G9iDaBO8LvfIfp0GIBQWXFnE4M2DjsQ/edit#

Related Miro Board: https://miro.com/app/board/o9J_lqGumwc=/?moveToWidget=3074457366365895330&cot=14