Add working configuration from initial install, plus agarica theme enablement

config/sync/field.field.group_content.group-group_membership.group_roles.yml

@@ -0,0 +1,24 @@
+uuid: 2c41c204-9bd3-47a9-9e3b-68c8404fbeb8
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.group_content.group_roles
+    - group.content_type.group-group_membership
+_core:
+  default_config_hash: wQMaiWUVvlE0sqOWMjp1e94Tk5CS42kew4h91KoiMxY
+id: group_content.group-group_membership.group_roles
+field_name: group_roles
+entity_type: group_content
+bundle: group-group_membership
+label: Roles
+description: ''
+required: false
+translatable: true
+default_value: {  }
+default_value_callback: ''
+settings:
+  handler: 'group_type:group_role'
+  handler_settings:
+    group_type_id: group
+field_type: entity_reference