fix crosstable query optimisation
localize forum numbers
disable pgn4web hotkeys
only consider finished games in crosstables
fa "فارسی" translation #8145. Author: Kerana.
lv "latviešu valoda" translation #8147. Author: krauzand.
kb "Taqvaylit" translation #8148. Author: skafis. most of it
hr "hrvatski" translation #8149. Author: wein.
it "Italiano" translation #8152. Author: GreenLeaf. 2 minor corrections
zh "中文" translation #8154. Author: haha620.