Proposed changes

This PR fixes an issue where Link Prefetch was always disabled regardless of capabilities, due to the system falling back to default settings when the nfd_link_prefetch_settings option did not exist. The defaults had both activeOnDesktop and activeOnMobile set to false, causing Link Prefetch to remain inactive even when capabilities like hasLinkPrefetchClick or hasLinkPrefetchHover were present. This fix updates the runtime logic to apply capability-based defaults only when the option is missing.

Type of Change

Production

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Dependency update
• Refactoring / housekeeping (changes to files not directly related to functionality)

Development

• Tests
• Dependency update
• Environment update / refactoring
• Documentation Update

Video

Checklist

• I have read the CONTRIBUTING doc
• I have viewed my change in a web-browser
• Linting and tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works
• I have added necessary documentation (if appropriate)

Further comments