Add `retries` plugin to the HTTPX connection and remove the redundant connection used for streamed components

A bug is a crash or incorrect behavior. If you have a debugging or troubleshooting question, please open [a discussion](https://github.com/shakacode/react_on_rails/discussions).

## Environment

1. Ruby version:
2. Rails version:
3. Shakapacker/Webpacker version:
4. React on Rails version:

## Expected behavior

## Actual behavior

## Small, reproducible repo
