Add working configuration from initial install, plus agarica theme enablement

config/sync/field.field.group.group.field_group_image.yml

@@ -0,0 +1,40 @@
+uuid: 1fa70cfb-373c-431a-a639-bf69ae2d0812
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.group.field_group_image
+    - group.type.group
+  module:
+    - image
+_core:
+  default_config_hash: KSAvOEJLJ6t207pUp9Tmzc5GzO5dTsYMZKhKcqE-1kU
+id: group.group.field_group_image
+field_name: field_group_image
+entity_type: group
+bundle: group
+label: Image
+description: ''
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings:
+  file_directory: '[date:custom:Y]-[date:custom:m]'
+  file_extensions: 'png gif jpg jpeg'
+  max_filesize: ''
+  max_resolution: ''
+  min_resolution: ''
+  alt_field: true
+  alt_field_required: true
+  title_field: false
+  title_field_required: false
+  default_image:
+    uuid: ''
+    alt: ''
+    title: ''
+    width: null
+    height: null
+  handler: 'default:file'
+  handler_settings: {  }
+field_type: image