Add Docker support to the template

[LukasPol]

Dockerizing the project provides numerous benefits, such as improved consistency across different development environments, simplified deployment, and encapsulation of dependencies.

This issue aims to integrate Docker into the template to enhance the development and deployment process.

Tasks:

• Investigate and implement Dockerfile for the Rails application.
• Configure Docker Compose for development and testing environments.
• Provide documentation on how to use Docker with the template.

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