chore: bump version to 0.2.0

fix: only playing first video

fix: file not being closed when playback ends

docs: update README

feat: support playing multiple video files sequentially

fix: correct typo

chore: go mod tidy

refactor: better error handling

refactor: make ffmpeg logs errors because of the log level

feat: allow playing files without audio

refactor: use PlayerContext to synchronize exiting of individual parts of pipeline

fix: remove unused import

refactor: make updateTerminalSize a method to clearly convey what is cactually being changed

refactor: remove unused method

fix: pass correct variable to SendAudioFrame