Instant closure when using shell input with piped output.

### What is the issue? When running `ollama run [model] | cat` or `ollama run [model] > [file]`, ollama now closes immediately and does not accept any manual input. `ollama run [model]` still functions as expected. While `cat | ollama run [model] ...` seems to be the workaround, this requires entering ^d to have the input processed. Thus closing the input stream and also ollama as a result, expected in this case since input was explicitly closed. Additionally, thanks to [pull 416](https://github.com/ollama/ollama/pull/416), this removes the ability to queue or follow up with further prompts. This regression seems specific to 0.4.4. After downgrading to 0.4.3 or 0.4.2, ollama functions as I expect. I have not tested older versions and will stick to version 0.4.3 for the time being. The purpose of the above syntax being to use the ability of the chat functionality for to enter multiple prompts while processing the output by a further script. Though this will be covered in a following feature request and is only tangentially related to this regression. Thank you for your time, have a nice rest of your day! ### OS Linux ### GPU AMD ### CPU AMD ### Ollama version 0.4.4