V 4.0.0

* Added: Block - Multi-select filters for job listings.
* Added: Block - Sidebar filter placement and stack layout option.
* Added: Block - Job sorting (Order By) support.
* Added: Block - Job spec icons with enable/disable option.
* Added: Block - Style tab with styling controls (colors, borders, padding, radius, buttons, background).
* Added: Block - Nonce-based CSRF protection for block filter and load-more AJAX requests.
* Added: Block - Filtered jobs.
* Added: Quick edit option for jobs.
* Added: Filter applications by date range.
* Added: Unread applications count display.
* Added: Overview page add-on widget.
* Added: Resume preview and CC field for applicant notifications.
* Improved: Admin UI and application management experience.
* Improved: Restore applications from trash to previous status.
* Improved: Highlight applications in admin lists.
* Improved: Reordering of specs from settings.
* Improved: Overview page analytics filter default selection.
* Fixed: Trashed applications count not updating.
* Updated: Default settings for layout, listings per page, and job search (new installations only).