[I18N] Update translation terms from Transifex

addons/account/i18n/ca.po

addons/account/i18n/cs.po

addons/account/i18n/de.po

addons/account/i18n/ja.po

addons/account/i18n/km.po

addons/account/i18n/sk.po

addons/account/i18n/sl.po

addons/account/i18n/th.po

addons/account_analytic_default/i18n/km.po

addons/account_bank_statement_import/i18n/cs.po

addons/account_bank_statement_import/i18n/km.po

addons/account_cancel/i18n/km.po

addons/account_check_printing/i18n/km.po

addons/account_payment/i18n/km.po

addons/account_test/i18n/cs.po

addons/account_voucher/i18n/km.po

addons/account_voucher/i18n/th.po

addons/analytic/i18n/cs.po

addons/analytic/i18n/km.po

addons/auth_ldap/i18n/km.po