v0.18 - official 7.4+ support and tighter permissions

This release:

• Makes Wagtail 7.4 support official
• Restricts the accepted file types by the browser
• bring various quality of life improvements
• and fixes a small information disclosure issue via the media chosen endpoint whereby users with access to the Wagtail admin could see the title of media items that they had no access to. The issues was reported and fixed by Afsana Alijabarova (@afa114)

Note: this is the same as v0.18.0, with a fix for the publishing process

What's Changed

• Wagtail 7.2 maintenance by @nickmoreton in #271
• Wagtail 7.4 Maintenance by @nickmoreton in #276
• Restrict the accepted file types in the browser by @jsma in #273
• Fix nightly tests, and harden GitHub Actions by @zerolab in #277
• Tidy up code based on code analysis by @zerolab in #278
• Enforce permission checks in the media_chosen view by @afa114

New Contributors

• @nickmoreton made their first contribution in #271

Full Changelog: v0.17.2...v0.18.0