Description of problem:

UI of DSG feature provides a way to add a data connection but creation modal doesn't have a field to connect the data connection to an existing workbench. 

it is possible to connect the data connection to a workbench after creation by clicking on "change connected workbenches".

Prerequisites (if any, like setup, operators/versions):

Create a Data science project

Create a workbench in the DS project

Steps to Reproduce

1. go to RHODS Dashboard > Data Science Projects
2. enter your project
3. create a data connection using UI and try to connect it to a workbench using the creation modal

Actual results:

There's no option to connect the data connection to the workbench in the creation modal

Expected results:

There's an option to connect the data connection to the workbench in the creation modal

Reproducibility (Always/Intermittent/Only Once):

Always

Build Details:

tested using local dashboard deployment, but the same changes should be in build v1.19.0-3. I will check

Workaround:

Additional info: