merge with main git using merge_canonical_changes.py.

wiki/src/support.ar.po: updating as wiki/src/support.de.po has changed.
wiki/src/support.ca.po: updating as wiki/src/support.de.po has changed.
wiki/src/support.id.po: updating as wiki/src/support.de.po has changed.
wiki/src/support.pl.po: updating as wiki/src/support.de.po has changed.
wiki/src/support.ru.po: updating as wiki/src/support.de.po has changed.
wiki/src/support.sr_Latn.po: updating as wiki/src/support.de.po has changed.
wiki/src/support.tr.po: updating as wiki/src/support.de.po has changed.
wiki/src/support.zh.po: updating as wiki/src/support.de.po has changed.
wiki/src/support.zh_TW.po: updating as wiki/src/support.de.po has changed.
wiki/src/support/learn.ar.po: updating as wiki/src/support/learn.de.po has changed.
wiki/src/support/learn.ca.po: updating as wiki/src/support/learn.de.po has changed.
wiki/src/support/learn.id.po: updating as wiki/src/support/learn.de.po has changed.
wiki/src/support/learn.pl.po: updating as wiki/src/support/learn.de.po has changed.
wiki/src/support/learn.ru.po: updating as wiki/src/support/learn.de.po has changed.
wiki/src/support/learn.sr_Latn.po: updating as wiki/src/support/learn.de.po has changed.
wiki/src/support/learn.tr.po: updating as wiki/src/support/learn.de.po has changed.
wiki/src/support/learn.zh.po: updating as wiki/src/support/learn.de.po has changed.
wiki/src/support/learn.zh_TW.po: updating as wiki/src/support/learn.de.po has changed.