Fix the translation file got into the correct place

[ruditimmermans]

Fix the translation file got into the correct place, also update the version into the specs and filecase.qml, i have compile this with the sdk and translations would be there...

[Olf0]

@ruditimmermans, thank you for your contribution. Two comments on why I changed this PR to draft status:

• Please link PR to the corresponding issue report by mentioning it. It took a while until I found that this PR addresses issue [Bug] TS files are not translated to QM files when building on OBS #68.
• The default branch is devel (also called "tip", i.e. the current development code), hence you need to apply your changes atop the current state of devel and direct your PRs to devel. I tried to rectify this by changing the base branch to devel, but this does not work, because you applied your changes atop the current state of the master branch (if I would stubbornly merge this, it would create a circular commit chain, which git does not handle well at all).
• I am not sure that the changes are required in filecase.pro:

  i18n_files.files = translations
  i18n_files.path = /usr/share/$$TARGET
  
  INSTALLS += i18n_files
  

  I will try to check, but AFAICS this change you suggested changes just set the default values explicitly.

[Olf0]

After some testing I am sure that this is nonsense (as suspected above), because the error message has always been (but nobody looked at it):
[ 228s] lupdate: could not exec '/usr/lib/qt5/bin/lupdate': No such file or directory
[ 228s] lrelease: could not exec '/usr/lib/qt5/bin/lrelease': No such file or directory