Match Acquia DAM Video assets for Canvas `video` shape

Problem/Motivation

Canvas has video shape described in its schema.json file. Acquia DAM Video assets should be matched by props of this shape.

Proposed resolution

Update CanvasHooks to support additional video schema:

  const SCHEMA_TO_MEDIA_SOURCE_PLUGIN= [
    // @see \Drupal\media\Plugin\media\Source\Image
    'json-schema-definitions://canvas.module/image' => 'acquia_dam_asset:image',
    'json-schema-definitions://canvas.module/video' => 'acquia_dam_asset:video',
  ];

Add logic, that uses updated SCHEMA_TO_MEDIA_SOURCE_PLUGIN constant.

Remaining tasks

Write tests, update code as appropriate to match changes in #3551419

User interface changes

N/A

API changes

N/A

Data model changes

N/A