moved folders inside app

app/main.py

@@ -15,7 +15,7 @@ class Item(BaseModel):
     file: UploadFile
 
 @app.get("/", response_class=HTMLResponse)
-async def read_index(request: Request):
+async def root(request: Request):
     return templates.TemplateResponse("index.html", {"request": request})
 
 @app.post("/detect", response_class=HTMLResponse)