Description: Modify the Containerfile for the dashboards-uiplugin to support hermetic builds. The Containerfile should be configured to ensure that all dependencies are included in the build environment, and no external dependencies are fetched during the process.

Acceptance Criteria:

• Modify the Containerfile to disable network access during the build.
• Add prefetching steps for any required dependencies specific to the dashboards-uiplugin.
• Ensure all dependencies are pulled in prior to starting the build.
• Verify the build completes successfully with no network access.