docs: rewrite README with full developer guide for ca-letteranimation.js

- Reorganized README into a clear, structured developer-focused guide
- Documented all supported attributes with usage details and formatting
- Added examples for sequence, random, reverse, word, and line animations
- Explained default behavior, fallbacks, and animation chaining logic
- Highlighted required 'cssanimation' base class and best practices
- Clarified usage of ca__lt-delay, ca__lt-duration, and ca__lt-separator

docs: rewrite README with full developer guide for ca-letteranimation.js

- Reorganized README into a clear, structured developer-focused guide
- Documented all supported attributes with usage details and formatting
- Added examples for sequence, random, reverse, word, and line animations
- Explained default behavior, fallbacks, and animation chaining logic
- Highlighted required 'cssanimation' base class and best practices
- Clarified usage of ca__lt-delay, ca__lt-duration, and ca__lt-separator

v3.1.2 – Improve GSAP letter animation docs & entry point behavior

### Documentation
- Enhanced GSAP Letter Animation Guide
- Added usage instructions for `ca__gx-lt` attribute with `sequence`, `reverse`, and `random` values
- Updated examples with span-wrapping and simplified `ca-gsap` syntax

### Changed
- index.js now loads full cssanimation.io stack (CSS + letter animations + GSAP) in one import
- Removed direct UMD imports to improve bundler compatibility
- `import 'cssanimationio'` now auto-initializes animations out of the box
- Added optional `window.__CA_DEBUG` flag for development insights

Update CHANGELOG.md

Update CHANGELOG.md

Update CHANGELOG.md

Version text update on the comment

Update CHANGELOG.md

Refactor: Replace old class prefix `.ca__-` with new scoped `.ca__lt`…

… selectors in ca-letteranimation.js

- Updated selector from `.ca__sequence` ➝ `.ca__lt-sequence`
- Updated selector from `.ca__random` ➝ `.ca__lt-random`
- Improved consistency with new prefixing convention
- Aligned with global prefix strategy for better maintainability

git commit -m "chore: remove unused Vite dependency and config"