OpenSubtitles plugin should search by title as a fallback
Currently the opensubtitles plugin only uses hashes and sizes for searching subtitles, but often this is not enough and even though I can easily find said subtitles manually by entering title in opensubtitles website, the plugin doesn't find any.
I suggest to improve the situation by giving the plugin ability to search by titles as a fallback, while giving the hashes and sizes mechanism a priority. Is that technically possible with opensubtitles APIs? What do you think about this idea?