* feat(readme): add screenshots section to README
* feat(readme): add transcription screenshot to README
* feat(readme): remove duplicate settings screenshot, keep annotated version
* refactor(readme): move screenshots to resources directory
* feat(resources): add screenshots directory
* feat(readme): add all screenshots in 2x2 table layout with full-width features overview
* docs(readme): mark Improved Wayland support as completed in roadmap
