fix: updated the DA to use region widget

[zikra-iqbal]

Description

This PR includes the following changes:

• Updated the DA to use region widget.
• Added next step url for DAs.

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Release notes content

Updated DAs to use the region widget and added the next-step URL.

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[zikra-iqbal]

Tested using private catalog, all supported regions are listed.

1. Fully configurable

2. Security-enforced

[zikra-iqbal]

Tested using the private catalog. Next step: redirecting the URL to the correct destination.

Deployment Details

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