Fix info window content rendering on TYPO3 14

[morja]

Problem

On TYPO3 14 with maps2 13.1.0, clicking a marker does not render the info window.

1. The site setting maps2.infoWindowContent.templatePath defaults to
   EXT:maps2/Resources/Private/Templates/InfoWindowContent.html. Since the
   templates were renamed, only InfoWindowContent.fluid.html exists, so the view
   cannot find its template unless a site overrides the setting.
2. Partials/InfoWindowContent.fluid.html renders the editorial content with
   f:transform.html. Resolving t3:// links there goes through LinkFactory,
   which reads $GLOBALS['TYPO3_REQUEST']. That global is not set while
   GetInfoWindowContentMiddleware renders the view, so POIs whose content contains
   a link fail.

Fix

• Point the default template setting to InfoWindowContent.fluid.html.
• Render the content with f:format.html. It takes the request from the Fluid
  rendering context, which InfoWindowContentService::createView() already passes,
  and parses the content with lib.parseFunc_RTE like other RTE output.
• Update the documented default path and add a ChangeLog entry.
• Add a unit test that the default template in the Site Set exists. It fails
  without the path fix.

Testing

• The new unit test passes with the fix and fails without it.
• The same change is applied as a Composer patch in a TYPO3 14.3 project that
  uses maps2 13.1.0.

🤖 Generated with Claude Code

[sfroemkenjw]

Hi @morja

thank you for providing a PR for this. Using f:format.html will parse content through lib.parseFunc_RTE which results into a complete different rendering and may break the rendering of a lot of sites out there. I temporary set TYPO3_REQUEST now and left a comment in middleware to check for f:format.html in future (next major release).

Stefan