WP Job Manager - Alerts 3.2.0

* New: Add job statistics about how many times the job was sent out in alert e-mails
* Dev: Add alert modal logged out version as template

* Fix jobs not being filtered by date for alert e-mails (#467)
* Fix: Update alert e-mail schedule when alert is edited in the admin screen (#469)

* New: Accountless Alerts. A long requested feature, now a new option makes user registration optional for creating job alerts. Job seekers can create alerts just with their e-mail, and after receiving and clicking a verification link, they'll start getting alert e-mails just like registered users did. These guest users can also manage via magic links in the e-mails sent.
* New: HTML e-mails. The Alert e-mails are now formatted. Brand color can be customized, as well as whether company name/logo/location should be displayed for the jobs.
* New: Customize which job fields can be used for setting up alerts.
* New: Add Alert modal: Instead of navigating to a new page with a form, alerts can be added right from the job listing page. Clicking Add Alert opens a modal to create an alert for the current search.
* Fix: Fix shortcode handler only running in pages
* Fix: Fix job alert pre-filling data when clicking New Alert

* Fix: Only run has_shortcode if content is not null (#148)

* Fix: Fix my-alerts.php template HTML
* Fix: Make 'Add alert' link relative
* Fix: Fix redirection after actions on My alerts page

* Enhancement: Replace my alerts table with list of cards #78
* Enhancement: Add Job Alerts admin table #80
* Fix: Fix PHP 8.2 deprecations #81
* Fix: Fix translation text domain #74
* Fix: Use Job Type IDs instead of slugs

* Fix: Fix reflected XSS

* Enhancement: Add Job Types to the My Alerts table.
* Enhancement: Use multiselect UI for Job Types in the form.
* Fix: Job Type field missing in the form.
* Fix: Alert message displaying on `[job_alerts]` shortcode.
* Dev: Move the `[job_alerts]` sign-in message to a separate template file.

* Add unsubscribe link to the email and text explaining why they are receiving it.
* Add email permission checkbox.
* Fix job type form showing up when job types are disabled by adding taxonomy check.
* Don't encode html special chars for email output.
* Remove job alert posts when removing user.

* Adds support for WP Job Manager 1.32.0's new asset enqueuing and Select2 usage.