🚀 Feature: Update appwrite package

### 🔖 Feature description

The appwrite package used in this playground is quite old.

### 🎤 Pitch

The package should be updated so it can easily be run against cloud.

In addition, the endpoint should be defaulted to cloud.

### 👀 Have you spent some time to check if this issue has been raised before?

- [X] I checked and didn't find similar issue

### 🏢 Have you read the Code of Conduct?

- [X] I have read the [Code of Conduct](https://github.com/appwrite/appwrite/blob/HEAD/CODE_OF_CONDUCT.md)

No file or test is named in the issue. Start by locating the Python dependency declaration and the Appwrite endpoint configuration, then check how the playground examples initialize the client. Done means the package is updated and the endpoint defaults to Appwrite Cloud.

Written by the indexing model from the issue text.