Support for logger for application logs

[shahharsh176]

Description

Implement built-in support for a logger to facilitate writing application logs.

Background

Currently, after creating a Zelthy project, users can configure the logger in the project's settings.py file. However, it would be more convenient to have built-in support for a logger that can be directly utilized in the app modules for writing application logs.

Feature Details

• Default logger configured in core settings.
• Log statements should contain additional information such as UUID, app_name, domain_url, etc.