[Tx: translations/flowplayer.ts] Add Finnish translation (fi) #94

100% translated source file: 'translations/flowplayer.ts'
on 'fi'.

Co-authored-by: @tuplasuhveli (Elmeri Länsiharju) via transifex-integration[bot] <43880903+transifex-integration[bot]@users.noreply.github.com>