Don't display header menu and footer in single metadata PDF export

[josegar74]

Related to #7521

The single metadata PDF export adds header toolbar and footer, as it's used the metadata full view formatter that uses the HTML layout.

In the PDF export doesn't seem to make sense to add these elements.

Before:

After:

Checklist

• I have read the [contribution guidelines](https://github.com/geonetwork/core-geonetwork/blob/main/CONTRIBUTING.md
• Pull request provided for main branch, backports managed with label
• Good housekeeping of code, cleaning up comments, tests, and documentation
• Clean commit history broken into understandable chucks, avoiding big commits with hundreds of files, cautious of reformatting and whitespace changes
• 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

[ianwallen]

Seem like you forgot to also fix the following link

https://github.com/geonetwork/core-geonetwork/blob/cf97fbc0edf57fbb9e2a32278b2f950b6a3067e8/web/src/main/webapp/xslt/skin/default/skin.xsl#L76C41-L86

[ianwallen]

Related to the following which has recently been merged #7481. Also seems like this merge caused conflicts in this PR

[josegar74]

@ianwallen it seems can be used a CSS class hidden-print, I'll rework the pull request to update the code.

[josegar74]

@ianwallen I applied your suggestions, the solution stated above to use a hidden-print CSS class caused other side effects due to a new CSS file that needed to be included, so I discarded it.

[ianwallen]

I tested the changes and it works.

I do find it odd that the PDF does not have a permalink back to the original metadata document. But that is something we can add in another PR if required.

[ianwallen]

Sorry - I guess there is a link to the metadata record. It is a small link that was easily missed.