Merge remote-tracking branch 'remotes/dev/3.1' into 3.1

Merge remote-tracking branch 'remotes/dev/3.1' into 3.1

Merge remote-tracking branch 'remotes/dev/3.1' into 3.1

BAP-18304: Prevent installation of 3.1 LTS release on outdated PHP ve…

…rsion (#22252)

* BAP-18304: Prevent installation of 3.1 LTS release on outdated PHP version

* locked terser package version because of BC changes, see webpack-contrib/terser-webpack-plugin#66

BAP-18307: Avoid exception on call to getRoute() on null in EmailActi…

…vityListProvider (#22178)

- fixed FatalThrowableError in Oro/Bundle/EmailBundle/Provider/EmailActivityListProvider.php line 473: Call to a member function getRoute() on null

BB-16178: Release preparation activities - Generate UPGRADE-*.md, CHA…

…… (#22122)

* BB-16178: Release preparation activities - Generate UPGRADE-*.md, CHANGELOG-*.md files - MANUAL ONLY

BAP-18094: There is no validation for mandatory fields in System Emai…

…l Configuration (#21483)

added validation for email and sender email fields for Campaign and Notification

BB-12733: All Orders grid view doesn't work (#21356)

- fixed GridViewsExtension initial state is added twice
- updated unit test
- added behat test
- optimized imports

Merge pull request #21145 from laboro/fix/BB-15783_2

BB-15783: Digital resolver overrides taxable address

BB-15593: Release activities - Verify UPGRADE-*.md files