Dark theme support

Merge pull request #25 from unxed/missing_xkbcommon_fix

Avoid panics when libxkbcommon is missing

Doc changes

Multi OS Readme Showcase

Feat (stable): Add linux-dmabuf-v1 protocol bindings and documentation

- Add linux-dmabuf-v1 protocol XML specification and generated Go bindings
- Create types.go with type aliases and Buffer wrapper for DMA-BUF compatibility
- Add comprehensive IMPLEMENTATION_NOTES.md documenting protocol structure and usage patterns
- Add README.md with protocol overview and integration examples
- Create example_test.go demonstrating both direct import and dynamic loading methods
- Add stable.go with GetNewFunc for dynamic protocol loading support
- Implement Buffer wrapper to maintain interface compatibility with wl.Buffer
- Support both direct import and registry-based binding patterns for stable protocols
- Follow established patterns from unstable protocol implementations for consistency

Gofmt all go files

Bind seat in shm demo, run forever in shm demo

fixd docker compose, works in normal user and in sudo -E on linux

Window trace

fix crash on different libdecor