Feature request: Add a predefined themes section for easier customization

[adrijshikhar]

Summary

It would be great if ccstatusline included a themes section with a collection of predefined, community-contributed themes. This would significantly lower the barrier for new adopters who want to quickly customize their status line without having to build a configuration from scratch.

Motivation

• New users often struggle with initial setup and customization
• Having ready-made themes gives users a starting point they can tweak to their liking
• A community-driven theme gallery encourages contributions and engagement
• Popular CLI tools (like Oh My Zsh, Starship, etc.) have benefited greatly from curated theme collections

Suggested approach

• Add a themes/ directory in the repo with predefined theme files
• Include a handful of built-in themes (e.g., minimal, powerline-style, informative, compact)
• Allow users to select a theme via a simple config option (e.g., "theme": "minimal")
• Accept community PRs for new themes, with a lightweight review process
• Document available themes with screenshots/previews in the README

This would make ccstatusline much more approachable and help grow the community around it. Thanks for the great tool!