style: standardize string formatting and improve readability across multiple files

- Refactored string formatting in various files to use consistent double quotes.
- Improved readability by adding newlines in function definitions and method calls.
- Cleaned up unnecessary imports and ensured proper spacing for better code clarity.
- Updated management commands and context processors for consistent formatting.
- Enhanced the overall maintainability of the codebase by adhering to PEP 8 guidelines.
- Applied Ruff linting and formatting

src/pkmntrade_club/common/context_processors.py

@@ -1,12 +1,14 @@
 from django.conf import settings
 
+
 def cache_settings(request):
     return {
-        'CACHE_TIMEOUT': settings.CACHE_TIMEOUT,
+        "CACHE_TIMEOUT": settings.CACHE_TIMEOUT,
     }
 
+
 def version_info(request):
     return {
-        'VERSION': settings.VERSION,
-        'VERSION_INFO': settings.VERSION_INFO,
-    }
+        "VERSION": settings.VERSION,
+        "VERSION_INFO": settings.VERSION_INFO,
+    }