Enable Multi-Asset Select for Checkin & Audit, Remove Duplicate Labels

[DiepTran0899]

Description

This PR improves the user experience for QuickScan Checkin and Bulk Audit:

• QuickScan Checkin: Allows selecting multiple assets at once using a modern multi-select (Select2), and processes check-in for each selected asset.
• Bulk Audit: Unifies the asset selection UI, removes duplicate "Asset Tag" labels, and uses the same multi-select component as QuickScan Checkin for consistency.

These changes help users perform bulk operations more efficiently and with a cleaner interface.

Note

All changes are backward compatible and do not affect other modules.

[DiepTran0899]

https://github.com/user-attachments/assets/710bf1a9-182c-4e29-bd23-6f5e81136603

[snipe]

Hi there - thanks for this! Can you please re-target this PR to point to the develop branch, per our Contributing documentation?

You don't need to close and re-open. After you create a pull request, you can modify the base branch so that the changes in the pull request are compared against a different branch. By changing the base branch of your original pull request rather than opening a new one with the correct base branch, you’ll be able to keep valuable work and discussion.

Thanks!

[DiepTran0899]

Updated this PR to point to the develop branch. Thanks!