[Documentation] How migrate from manualCrop / Focal Point D7 to MediaContextualCrop Collection

[change log]

- 19th Jan : init

[How migrate Crop from D7 to D10 with media_contextual_crop collection]

Modules needed :

- image_field_to_media
- media_library_media_modify
- Crop (by dependencies)
- media_contextual_crop & media_contextual_crop References

from focal_point :
- media_contextual_crop Focal Point Adapter
- D10 version of focal_point

from manual_crop :
- media_contextual_crop Image Widget Crop Adapter
- Image Widget Crop

Image Style Migration

Field Migration

On of steps are to change the "image field" (legacy) to a "Media with contextual modifications" .
This opération can be made by hand in 2 stages :
- The module image_field_to_media provide a new action in fields of content_type, "cloning" an image field to a "entity_reference to media" field and migrate image to a media (for not loosing data).
- The module media_library_media_modify provide a drush command to migrate an "entity_reference" field to a "Media with contextual modifications" field.

Applying this two operation will adapte content fields to the new use.

Configuration correction

- fix content "new field" view mode formater
- fix media image form mode widget & view mode formater

Data migration

[TO DO]

Sources :

Migration of manualCrop : https://www.drupal.org/project/manualcrop/issues/3383416 📌 Migration Needs review