Add partial match support to usePreview helpers isSelected and isHovered

[stekalt]

Description

At the moment the isSelected and isHovered helpers of the usePreview() hook only support the exact comparison of the given URL. This change adds the option to only compare the URL partially by checking if the adminRoute starts with the provided URL.

This change is useful for scenarios like displaying child blocks in components such as accordions, where the exact structure of the child block and therefore the admin route to compare might not be known.

Acceptance criteria

• I have verified if my change requires an example
• I have verified if my change requires a changeset
• I have verified if my change requires screenshots/screencasts

Screenshots/screencasts

Before	After
https://github.com/user-attachments/assets/fc6abab1-7b53-4cf4-b571-f7506fdd3ac3	https://github.com/user-attachments/assets/ab1b00ff-38da-4d31-8900-6bb17a671430

Open TODOs/questions

• Add changeset

Further information

• Task: https://vivid-planet.atlassian.net/browse/COM-1293

[johnnyomair]

Please implement an example usage in Demo. You can use the accordion block for this.

[sonarqubecloud]

Quality Gate failed

Failed conditions
0.0% Coverage on New Code (required ≥ 80%)

See analysis details on SonarQube Cloud