DocEditor: improved interface captions

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42336 4005530d-fff6-0310-9dd1-cebe43e6787f
DocEditor: regenerated translations; updated Russian translation

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42337 4005530d-fff6-0310-9dd1-cebe43e6787f