Print view uses the SilverStripe templating to render values which means that
values are safely escaped by default. This can be tested by chaing `$CellString`
to `$CellString.RAW` in the GridField_print.ss template to see this escaping
being disabled.
This pull request removes double escaping of HTML in strings.
* Add gridfield restore action, enable view button in action menu
* Abstract restore action and create test
* Use more appropriate canRestoreToDraft and isArchived, move translations
* Use Hierarchy to determine if a record should be restored to root
* Move restore action to versioned
* Allow buttons to opt out of display
* Linting
* Remove redundant function call
* Add test for group delete action
* Add menu group check and test for delete action
* Fix linting
* WIP GridField action menu work, the gist of the idea is using a new gridfield component
* Add delete action to actions menu
* Actions are added automatically to action menu (allows for extension)
* Add test and minor changes
* Add docs and minor changes
* Refactor ActionMenuItem into distinct types, general ActionMenu cleanup
* Add icons and fix title
* Pass columnName, so it can be used by components
* Update test to open and find action menu buttons
* Add section in changelog upgrade section for GridField_ActionMenu
There is no action for 'autocomplete', there is no method 'handleAutocomplete', and out of the box there is no extension that applies it.
Manually testing the URL that would take us through such a handler does not give an exception about missing details from the URI (such as a required query string), but instead gives us an exception on there not being a handler for such.
`[Emergency] Uncaught BadMethodCallException: Object->__call(): the method 'handleAutocomplete' does not exist on 'SilverStripe\Forms\GridField\GridFieldDetailForm'`
@ e.g. `http://localhost/admin/pages/edit/EditForm/1/field/ElementalArea/autocomplete`.
Auto complete should be (and is) handled in it's own component code, such as https://github.com/silverstripe/silverstripe-framework/blob/4.0/src/Forms/GridField/GridFieldAddExistingAutocompleter.php#L210
