Proxy URL Configuration Option for OpenAI Key in AppWrite Docker Compose Deployment

### 👟 Reproduction steps Description During the deployment of AppWrite using docker-compose.yaml, I've run into an issue regarding the configuration for using OpenAI services. Problem Details The docker-compose.yaml file or the associated configuration setup provides an option to configure the OpenAI key. However, there is no provision to set the proxy URL. I rely on an OpenAI proxy to access OpenAI services due to various network or access - related reasons. Without the ability to specify the proxy URL, AppWrite fails to utilize the OpenAI services properly through the proxy. When I try to use AppWrite features that are supposed to interact with OpenAI (such as any AI - related functions that leverage OpenAI models), the requests either time out or fail to connect because AppWrite is attempting to reach the standard OpenAI endpoints directly instead of going through the configured proxy. Steps to Reproduce Prepare a docker-compose.yaml file for AppWrite deployment. Fill in the OpenAI key in the relevant configuration option. Try to use AppWrite features that interact with OpenAI while being behind an OpenAI proxy. Notice that the operations related to OpenAI do not work as expected, and error messages related to connection issues or time - outs may appear in the logs. Impact The absence of the proxy URL configuration option severely limits the usability of AppWrite for users who need to access OpenAI services through a proxy. It restricts the flexibility of the deployment and prevents some users from fully leveraging AppWrite's AI - integrated features, which can be a significant drawback for those in regions with network restrictions or specific access requirements. I kindly request the development team to add the proxy URL configuration option for OpenAI requests to address this issue. Thank you. ### 👍 Expected behavior Expected Behavior There should be an additional configuration option in the docker-compose.yaml or the associated configuration files to set th…