Prevents templates being created when adding DocTypes through the block list config

[skttl]

Fixes #8646

Prerequisites

• I have added steps to test this contribution in the description below

If there's an existing issue for this PR then this fixes #8646

Description

I added the noTemplate property to the model used for creating the document type.

To test:
Create a block list, add a block, add a new doctype for the block. Verify that no templates are being created for the new doctype.

[poornimanayar]

Hey @skttl ,

This totally works! Happy to approve. Thanks a lot for the work :-)

Poornima

[umbrabot]

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