Qt OpenGL in Qt5 is a deprecated module that is discouraged for
new code usage. We have been including this module in our builds
despite not relying on its functionality for a long time now -
probably an oversight from porting to the newer functions.
Time to remove it.
IMPORTANT INFORMATION: In Qt6, a lot of functionality that was
provided by Qt GUI was moved into the 'new' Qt6 Qt OpenGL module.
Thus, even if it makes perfectly sense to remove it for Qt5 builds
we will likely have to restore it for Qt6 builds at a later time.
In the past, translation files provided by the community
mostly came as pregenerated .qm files missing the corresponding
.ts sources. This has led to a situation where the translations
are out of sync with the sources and the sources have not been
updated for several release iterations.
To improve the situation, this commit syncs all .qm files back to
the sources by using the lconvert tool to create .ts files and
updating these files against our sources using lupdate.
For future updates, a CI solution would be preferable.
When an issues is open from YACReaderLibrary we can check if it is a manga an update the UI to enable manga reading.
This also fixes going previous/next from the ui/shortcuts
The timer used to time out and invoke Viewer::informationSwitch() twice
before getting destroyed. This caused the following bug:
1. Press 'I' to Show Info in YACReader.
2. Restart YACReader (exit and run again). Info is visible.
3. Restart YACReader one more time. Info is hidden.
Apparently, when informationSwitch() was called a second time soon after
the first one, informationLabel didn't hide for some reason, but the
wrong value (false) was stored at the SHOW_INFO key in Configuration.
