NTP: Add screenshot tests for omnibar widget states

[noisysocks]

Asana Task/Github Issue: https://app.asana.com/1/137249556945/project/1209121419454298/task/1210863200373719

Description

Adds screenshot tests for the various UI states of the omnibar widget.

Testing Steps

n/a

Checklist

Please tick all that apply:

• I have tested this change locally
• I have tested this change locally in all supported browsers
• This change will be visible to users
• I have added automated tests that cover this change
• I have ensured the change is gated by config
• This change was covered by a ship review
• This change was covered by a tech design
• Any dependent config has been merged

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[github-actions]

Temporary Branch Update

The temporary branch has been updated with the latest changes. Below are the details:

• Branch Name: pr-releases/pr-1868
• Commit Hash: eb558ac2658edc768631ae96a976a1c998584e4f
• Last Updated: July 31, 2025 at 11:57:23 PM UTC
• Install Command: npm i github:duckduckgo/content-scope-scripts#eb558ac2658edc768631ae96a976a1c998584e4f

Please use the above install command to update to the latest version.

[github-actions]

[Beta] Generated file diff

Time updated: Thu, 31 Jul 2025 23:57:44 GMT