Configuration Improvement: Create config.toml on Application Start

[kobayurii]

This PR introduces a feature to automatically create a default config.toml file when the application starts, ensuring that configuration parameters are loaded from environment variables. If a config.toml is not found, the application will generate one using the environment variables.

Details:

• Adds functionality to create a default config.toml file if it does not already exist.
• The generated config.toml will include parameters from the environment variables.
• Any environment variables not set will be assigned default values.

Purpose:
This improvement aims to simplify the configuration process and provide better visibility into the parameters being used by the application. By generating a default config.toml, users can easily adjust configurations without needing to manually create this file.

[khorolets]

Overall looks great. I left few comments where this PR might be improved. Appreciate your contribution ❤️

[kobayurii]

@race-of-sloths please, include my PR in the Race

[race-of-sloths]

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Current status: executed

Reviewer	Score
@race-of-sloths	2

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[khorolets]

Looks great, can you please update the CHANGELOG with this change and we're ready to merge

[khorolets]

Sorry I missed that you've made the record in the CHANGELOG. Perfect!

[race-of-sloths]

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