IDE: improved Install/Uninstall Packages dialog captions to make it more intuitive

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42784 4005530d-fff6-0310-9dd1-cebe43e6787f
IDE: regenerated translations; updated Russian translation

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42785 4005530d-fff6-0310-9dd1-cebe43e6787f