Refactor test cases for improved readability and consistency

- Updated test functions in various test files to enhance code clarity by formatting long lines and improving indentation.
- Adjusted assertions to use multi-line formatting for better readability.
- Added new test cases for theme settings API to ensure proper functionality.
- Ensured consistent use of line breaks and spacing across test files for uniformity.

routes/maintenance.py

@@ -34,8 +34,9 @@ class MaintenanceRead(MaintenanceBase):
 
 
 def _get_maintenance_or_404(db: Session, maintenance_id: int) -> Maintenance:
-    maintenance = db.query(Maintenance).filter(
-        Maintenance.id == maintenance_id).first()
+    maintenance = (
+        db.query(Maintenance).filter(Maintenance.id == maintenance_id).first()
+    )
     if maintenance is None:
         raise HTTPException(
             status_code=status.HTTP_404_NOT_FOUND,
@@ -44,8 +45,12 @@ def _get_maintenance_or_404(db: Session, maintenance_id: int) -> Maintenance:
     return maintenance
 
 
-@router.post("/", response_model=MaintenanceRead, status_code=status.HTTP_201_CREATED)
-def create_maintenance(maintenance: MaintenanceCreate, db: Session = Depends(get_db)):
+@router.post(
+    "/", response_model=MaintenanceRead, status_code=status.HTTP_201_CREATED
+)
+def create_maintenance(
+    maintenance: MaintenanceCreate, db: Session = Depends(get_db)
+):
     db_maintenance = Maintenance(**maintenance.model_dump())
     db.add(db_maintenance)
     db.commit()
@@ -54,7 +59,9 @@ def create_maintenance(maintenance: MaintenanceCreate, db: Session = Depends(get
 
 
 @router.get("/", response_model=List[MaintenanceRead])
-def list_maintenance(skip: int = 0, limit: int = 100, db: Session = Depends(get_db)):
+def list_maintenance(
+    skip: int = 0, limit: int = 100, db: Session = Depends(get_db)
+):
     return db.query(Maintenance).offset(skip).limit(limit).all()