Move config out of redundant sync directory

config/core.base_field_override.node.case_study.changed.yml

@@ -0,0 +1,18 @@
+uuid: e873ea9d-5f2d-4e6f-bc02-18ddb3ada70c
+langcode: en
+status: true
+dependencies:
+  config:
+    - node.type.case_study
+id: node.case_study.changed
+field_name: changed
+entity_type: node
+bundle: case_study
+label: Changed
+description: 'The time that the node was last edited.'
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings: {  }
+field_type: changed