Rename schema and test files for consistency

Renamed `event_theme` and `test_user_schema` file paths and imports to follow consistent plural naming conventions. This improves code clarity and aligns file and import naming across the project.

backend/app/api/routes/event_themes.py

@@ -7,7 +7,7 @@ from sqlalchemy.orm import Session
 
 from app.core.database import get_db
 from app.crud.event_theme import event_theme
-from app.schemas.event_theme import EventThemeCreate, EventThemeResponse, EventThemeUpdate
+from app.schemas.event_themes import EventThemeCreate, EventThemeResponse, EventThemeUpdate
 
 router = APIRouter()
 

backend/app/crud/event_theme.py

@@ -3,7 +3,7 @@ from sqlalchemy.orm import Session
 
 from app.crud.base import CRUDBase
 from app.models.event_theme import EventTheme
-from app.schemas.event_theme import EventThemeCreate, EventThemeUpdate
+from app.schemas.event_themes import EventThemeCreate, EventThemeUpdate
 
 
 class CRUDEventTheme(CRUDBase[EventTheme, EventThemeCreate, EventThemeUpdate]):

backend/app/schemas/event_themes.py

@@ -1,4 +1,4 @@
-# app/schemas/event_theme.py
+# app/schemas/event_themes.py
 from typing import Dict, Optional
 from uuid import UUID  # Add this import
 from pydantic import BaseModel, Field, validator, field_validator