perf: supply more video and subtitle formats (#67)

chore(release): release v2.4.0

fix(matcher): perform unicode NFKC before matching (#76)

fix(matcher): allow whitespace as a matching suffix (#75)

fix(settings): add persistence for 'sub-sync' option

chore(i18n): add missing colon after 'duration'

fix(ffsubsync): add support for aborting execution

fix(ui): adjust settings window (#64) (#74)

fix(unicode): using unicode icu data

refactor(build): uniformize dotnet publish properties

chore(deps): upgrade all dependencies

chore: update README.md

feat: support automatic subtitle synchronization

feat: add progress dialog functionality

feat: add terminal view and view model