Add UI setting to enable / disable the metadata panel in the home page

[josegar74]

Add a new UI setting to display in the home page the latest and most popular metadata panel:

By default is enabled, working as previously:

When disabled:

Checklist

• [X] I have read the contribution guidelines
• [X] Pull request provided for main branch, backports managed with label
• [ ] Good housekeeping of code, cleaning up comments, tests, and documentation
• [X] Clean commit history broken into understandable chucks, avoiding big commits with hundreds of files, cautious of reformatting and whitespace changes
• [X] Clean commit messages, longer verbose messages are encouraged
• [ ] API Changes are identified in commit messages
• [ ] Testing provided for features or enhancements using automatic tests
• [ ] User documentation provided for new features or enhancements in manual
• [ ] Build documentation provided for development instructions in README.md files
• [ ] Library management using pom.xml dependency management. Update build documentation with intended library use and library tutorials or documentation

[fxprunayre]

As discussed with @josegar74 , a more flexible approach can be to customize all tabs and search, or no tab at all - it has been done in https://github.com/geonetwork/core-geonetwork/pull/6516/files#diff-e59e3ff6d4ce905db615e79830f97fcdc8da9d7356d851d4a21c42c5195fa86bR185-R215

This would allow to have the home page with facet only as webcomponent eg.

[fxprunayre]

Replaced by https://github.com/geonetwork/core-geonetwork/pull/6516. If needed in 4.2.x, configuration to be backported https://github.com/geonetwork/core-geonetwork/blob/main/web-ui/src/main/resources/catalog/js/CatController.js#L186-L216