Views does not validate style and row plugins are valid

Problem/Motivation

Views style and row plugins are specific to types of displays, you can see this in:
\Drupal\views\Plugin\views\display\DisplayPluginBase::buildOptionsForm

Where it does this:

'#options' => Views::fetchPluginNames('cache', $this->getType(), [$this->view->storage->get('base_table')]),

However, the \Drupal\views\Plugin\views\display\DisplayPluginBase::validate method does not validate that the selected plugins are actually valid, so you can easily cause problems.

See #2955378: Fatal error on Drupal 8.5, on a data_export display that uses not the data_export style but the *default* style, #3551130: Improve cloning in views to prevent crashes. for example.

Steps to reproduce

1. Create a new view
2. Add a page display, and override the default display plugin, but set it to the 'default' plugin, which is called 'Unformatted' in the UI.
3. Use the 'Duplicate as REST export' functionality to produce another display
4. Tweak the path of this display so that you can save the view
5. Save the view
6. On collecting routes, this will now cause a fatal error, since the Rest Export display plugin assumes that the style plugin is compatible, but it isn't because it's the 'default' plugin and doesn't have a getFormats method.

Proposed resolution

Validate the style and row plugin in the validate method.

We already do this in Views Data Export, see: https://git.drupalcode.org/project/views_data_export/-/merge_requests/90

Remaining tasks

Review the code.

User interface changes

More error messaging.

Introduced terminology

None.

API changes

None.

Data model changes

None.

Release notes snippet