BUG: Linux: Get correct path to translation files

[Letterus]

This line is not correct probably, f.e. within an AppImage:

Seamly2D/src/libs/vmisc/vabstractapplication.cpp

Line 165 in 435afcd

return QCoreApplication::applicationDirPath() + QStringLiteral("/../share") + trPath;

Thus the AppImage fails to find the translation files. This was worked around by copying the files a second time at a different location, but the root of the problem lies in the line above.

Thanks to @csett86 for the hint.

[slspencer]

The /src and /share directories are at the same level.
applicationDirPath() should be src, but maybe it isn't.
trPath should be /translations, but maybe it isn't.
I'll find out exactly these variables contain in vabstractapplication.cpp and make the corrections.