Live reload makefile target for dev environment

[shohidulbari]

Is your feature request related to a problem? Please describe.
When running LocalAI in a development environment, I would like to avoid rebuilding the project manually using make build every time I make changes to the source code. Currently, any modification requires a manual rebuild to apply the updates, which slows down the development workflow.

Describe the solution you'd like
I propose adding a development mode that supports automatic rebuild and reload on file changes, for example by integrating https://github.com/air-verse/air

Describe alternatives you've considered
I have reviewed the existing Makefile targets but could not find one that provides this functionality.

If such a target already exists, please let me know and I will close this issue.