Pull Request for Issue #27222

Summary of Changes

• Add title, aria-label etc. like requested in #27222
• Add new protected $list to avoid redundant code.
• Remove senseless Next/Previous if not linked (on first and last page).

Comment

- Please check if the aria-label should be changed! I couldn't find any "nice" language strings.

Current HTML

<ul>
 <li>
  <a class="hasTooltip" href="/path/8-beginners" title="Beginners" aria-label="Previous: Beginners (Page 1 of 7)" rel="prev">
  <span class="icon-chevron-left" aria-hidden="true"></span> <span aria-hidden="true">Prev</span>
  </a>
 </li>
 <li>
  <a class="hasTooltip" href="/path/8-beginners?start=2" title="alias 1" aria-label="Next: alias 1 (Page 3 of 7)" rel="next">
   <span aria-hidden="true">Next</span> <span class="icon-chevron-right" aria-hidden="true"></span>
  </a>
 </li>
</ul>

Testing Instructions

• Create a new article that contains several page breaks.
  Mix page breaks with and without title, with and without alias and page breaks without title AND alias.

• Make sure that the plugin "Content - Page Break" is enabled and presentation style is set to "Pages".
  Test also with setting "Show All" on and off if page numbering still correct.

• Open article in front-end with "Protostar" template.

• Check page break navigation and have also a look on the created HTML.
  

• Has these ugly tooltips now?

• aria-labels; correct numbering?

• and so on

Expected result

• No B\C break with existing overrides of toc.php ($list versus $this->list).
• No grave changes concerning look&feel etc.