Refactor. Better JS driven, better PHP, safer, more options. Still WIP, need to override the queries now and process the Sol JSON API Facet & stats

Allows IABookeader to match a sequence (from Solr) against the UUID loaded in the IIIF Manifest. Basically allowing multiple PDFs to work out
Requires :
- testing (more)
- Canvase IDs that end with /file_uuid/canvas/p1 or video1 or anything that ends with a number for the actual page
@alliomeria yeah ... that

works like this
sbf_file_content("uuid_of_the_node", "uuid_of_the_file", "thename.jsonld");

Will return the content of a file if found/matches one of the mimetypes defined as valid for our metadata displays, now defined as constants at

CONST ALLOWED_MIMETYPES = [
    'text/html' => 'HTML',
    'application/json' => 'JSON',
    'application/ld+json' => 'JSON-LD',
    'application/xml' => 'XML',
    'text/text' => 'TEXT',
    'text/turtle' => 'RDF/TURTLE',
    'text/csv' => 'CSV',
  ];
an error message in case of exception or an empty string if the file does not exist, the user has no permission, is not of an allowed  type, etc (avoiding as much as possible errors)

@alliomeria i am truly smartz! (and modest too!)

Basically keep doing that/delaying the event until (if ever) we have an event listener.
Also attach the event listener only to the Body. We need it only once. Not more.

Also updates them. Probably missing some "side" effects of this

…nder errors

Next step is to make it "elegant"

Can be better. But i feel like this already very very nice @alliomeria

 Many render arrays can be nested of sub-sub things. One does never know. So we only bail out when a Key is numeric and the value is scalar.

.. just Catch any exception. We can only catch "logic Exceptions". This is some advanced stuff @alliomeria . So so hard

this header... never had an issue before 2024

Because IOS/Safari as dumb (very) see #485

also do some indentation...