OEL-2070: Import the gallery paragraph view mode override when the related paragraph is installed.

modules/oe_whitelabel_paragraphs/config/overrides/core.entity_view_display.paragraph.oe_gallery.default.yml

+langcode: en
+status: true
+dependencies:
+  config:
+    - field.field.paragraph.oe_gallery.field_oe_gallery_items
+    - field.field.paragraph.oe_gallery.field_oe_plain_text_long
+    - field.field.paragraph.oe_gallery.field_oe_title
+    - paragraphs.paragraphs_type.oe_gallery
+  module:
+    - oe_whitelabel_helper
+id: paragraph.oe_gallery.default
+targetEntityType: paragraph
+bundle: oe_gallery
+mode: default
+content:
+  field_oe_gallery_items:
+    type: oe_whitelabel_helper_gallery
+    label: hidden
+    settings: {  }
+    third_party_settings: {  }
+    weight: 2
+    region: content
+  field_oe_plain_text_long:
+    type: basic_string
+    label: hidden
+    settings: {  }
+    third_party_settings: {  }
+    weight: 1
+    region: content
+  field_oe_title:
+    type: string
+    label: hidden
+    settings:
+      link_to_entity: false
+    third_party_settings: {  }
+    weight: 0
+    region: content
+hidden:
+  search_api_excerpt: true

modules/oe_whitelabel_paragraphs/oe_whitelabel_paragraphs.module

@@ -25,10 +25,26 @@ use Drupal\media\Plugin\media\Source\OEmbed;
 use Drupal\media_avportal\Plugin\media\Source\MediaAvPortalPhotoSource;
 use Drupal\media_avportal\Plugin\media\Source\MediaAvPortalSourceInterface;
 use Drupal\media_avportal\Plugin\media\Source\MediaAvPortalVideoSource;
+use Drupal\oe_bootstrap_theme\ConfigImporter;
 use Drupal\oe_bootstrap_theme\ValueObject\ImageValueObject;
 use Drupal\oe_media_iframe\Plugin\media\Source\Iframe;
 use Drupal\paragraphs\Entity\Paragraph;
 
+/**
+ * Implements hook_modules_installed().
+ */
+function oe_whitelabel_paragraphs_modules_installed($modules, $is_syncing) {
+  if ($is_syncing) {
+    return;
+  }
+
+  // Import the gallery paragraph view display override when the related
+  // module is installed.
+  if (in_array('oe_paragraphs_gallery', $modules)) {
+    ConfigImporter::importSingle('module', 'oe_whitelabel_paragraphs', '/config/overrides/', 'core.entity_view_display.paragraph.oe_gallery.default');
+  }
+}
+
 /**
  * Implements hook_theme_suggestions_HOOK_alter().
  *