Integrate Tailwind CSS for utility-first styling

[LukasPol]

Tailwind CSS is a utility-first CSS framework that allows for rapid styling and customization.
This issue involves integrating Tailwind CSS into the template to enhance the styling capabilities of the Rails application.

Tasks:

• Add Tailwind CSS to the Gemfile or use a CDN.
• Configure Tailwind CSS for styling in the Rails application.
• Provide documentation on how to use Tailwind CSS with the template.

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