Changelog: HND FAQ Pro

• Fixed plugin update issues

– Fix: main plugin file renamed from index.php to hnd-faq-pro.php (WP.org directory requirement)
– Fix: all inline <script> and <style> output converted to wp_add_inline_script / wp_add_inline_style
– Fix: removed load_plugin_textdomain() — WordPress 4.6+ auto-loads translations

– Security: replaced all `wp_redirect()` with `wp_safe_redirect()`
– Security: added nonce verification to category order form
– Security: proper `wp_unslash()` before sanitization throughout
– Code: replaced deprecated `get_page_by_title()` with `get_posts()`
– Code: `date()` replaced with `gmdate()` for timezone safety
– Plugin slug renamed from `hnd-faq-plugin` to `hnd-faq` (WP.org requirement)
– Tested up to WordPress 6.9

Initial release