Resize/Zoom to Fit Screen crops subtitles

Subtitle position is not adjusted when resizing the video to "Fit screen".

This results in the subtitles also being cropped with the video.

VLC core's limitation.

changed milestone to %4.0

added VLC core label

marked this issue as related to #1344

Nova Video Player and Just (Video) Player which are open source are able to show subtitles correctly when video is resized.(tested Nova v6.0.67 (versionCode 2483321) from F-Droid, Just v0.114(versionCode 114))