SnkSynthesis

You should add `CORSMiddleware` like this: ```python app.add_middleware( CORSMiddleware, allow_origins=["*"], # Allows all origins allow_credentials=True, allow_methods=["*"], # Allows all methods allow_headers=["*"], # Allows all headers ) ```

> If we are doing delete, we should add query/if for get, update, delete checking if note exists. @ArcLightSlavik, I'm working on this.

> If we are doing delete, we should add query/if for get, update, delete checking if note exists. @ArcLightSlavik, I have implemented this.

@tiangolo I made some changes to make tests pass. Also I merged this branch with master branch.