Refactor code for consistency and readability

- Standardized string quotes across multiple files to use double quotes for consistency.
- Improved formatting of JSON dumps in mock data for better readability.
- Enhanced the structure of various functions and data definitions for clarity.
- Updated test cases to reflect changes in data structure and ensure accuracy.

dashboard/openstack_utils/connect.py

@@ -1,6 +1,5 @@
 import openstack
 from openstack.connection import Connection
-
 from watcher_visio.settings import OPENSTACK_CLOUD, OPENSTACK_REGION_NAME