SS-1108 environment support in jupyter notebooks

[churnikov]

Status

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Description

In serve we already had support for environments. We are just bringing it back to jupyter notebooks

Checklist

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This is simply a reminder of what we are going to look for before merging your code.

• This pull request is against develop branch (not applicable for hotfixes)
• I have included a link to the issue on GitHub or JIRA (if any)
• I have included migration files (if there are changes to the model classes)
• I have included, reviewed and executed tests (unit and end2end) to complement my changes
• I have updated the related documentation (if necessary)
• I have added a reviewer for this pull request
• I have added myself as an author for this pull request
• In the case I have modified settings.py, then I have also updated the studio-settings-configmap.yaml file in serve-charts

[akochari]

Looks great! Nice that we could revive this easily!
I will just add an e2e test of creating a new environment within the next couple of days.

[akochari]

Now e2e added and passing.

[akochari]

Looks good!