This changes the remux dialog to support a collection of input/output
pairs, presented as a QTableView. Standard Qt icons are used to
indicate the state of each entry during a remux operation. Drag/drop
support is added to populate the list quickly. Both Dark and Rachni
themes are updated to make QTableView look reasonable.
Relevant text is added in the localization files.
Closesobsproject/obs-studio#1153
This adds close buttons to remux dialog, output timer dialog, and
advanced audio properties dialog. I also did a small refactor of the
remux dialog so the buttons were consistent with other dialogs.
Closesjp9000/obs-studio#876
nleseul
cg2121
jp9000