apidoc rewrite to jdk 23 layout (minimal)

[ebarboni]

This is a proposal to have a bit more modern apidoc. Using css/html from new layout javadoc tool 23.

In order to work, bootstrap ant task

• linkchecker need upgrade to scan more element, and allow other ordering of attribute to find href/name/id.
• javadocindex need to parse new div based navigation file.
• arch.java needs new parameters to render optional element

Inject into arch/apichanges pages

• new menu + header that looks like normal apidoc page
• deprecated menu if deprecated.html present.

correct some top level page to not swallow api so we have correct text instead blank text.

css altered to get green header with green taken from APache NetBeans website to make difference when you look at jdk apidoc.

This PR will lead to many checklink errors because ( ) , should be back to the href as before they were replaced by -

Example:
@org-openide-util@/org/openide/util/BaseUtilities.html#isWindows-- needs to be replaced by @org-openide-util@/org/openide/util/BaseUtilities.html#isWindows()

tested on jdk 23 and 24.

[mbien]

@ebarboni makes sense to me - you showed me the results via slack too and it looked great IMO. Could you rebase so that the build takes #8369 into account?

[ebarboni]

ok merging so we have a live overview. will need to fix the url in code base to have parenthesis back