Enable multi-language build and build on all branches

[khaos-codi]

Enable Multi-language Build and Build on All Branches

This PR fixes two important issues:

1. Spanish resources not appearing in the build assets:

   • Updated build.sh to properly process command line arguments (--all-languages, --lang=xx)
   • Modified workflow to call build script with the --all-languages flag
   • Added Spanish-specific image directories and resource paths
   • Added copy operations to ensure Spanish assets are correctly built and copied to the right locations

2. Building on all branches:

   • Removed branch restriction for the build job (now builds on any branch)
   • Only the release job is restricted to the main branch for publishing
   • Added debug output to list build directory contents before release

Key Changes:

• Build.sh Improvements:

  • Added command-line argument parsing
  • Added specific handling for Spanish images
  • Improved image handling for cross-language referencing
  • Added detection for CI environment to always build all languages in CI

• Workflow Changes:

  • Removed branch restriction for build job
  • Added conditional for release job to only run on main branch
  • Added directory listing step to debug build contents
  • Force building of all languages by passing --all-languages flag

This PR ensures that both English and Spanish books will be built and published in the release assets, and that builds will run on all branches (with releases only on main).