Taxonomy Facets 3.0.0

First stable release of the Drupal 11 clean-room rewrite: zero-JavaScript,
server-rendered faceted navigation over clean URLs, exportable to static HTML.

Includes the static-export toolchain (URL Export, Tome Static and Simple XML
Sitemap submodules) and the page-count estimator. Since 3.0.0-rc3: README and
project-page documentation polish only; no code changes.

Quality: PHPCS (Drupal, DrupalPractice) and PHPStan level 2 clean; 35 PHPUnit
tests and 30 Behat scenarios green.