[I18N] Update translation terms from Transifex

addons/account/i18n/cs.po

addons/account/i18n/de.po

addons/account/i18n/es_EC.po

addons/account/i18n/es_MX.po

addons/account/i18n/fr.po

addons/account/i18n/it.po

addons/account/i18n/pl.po

addons/account/i18n/sk.po

addons/account_analytic_analysis/i18n/es_EC.po

addons/account_analytic_analysis/i18n/ru.po

addons/account_analytic_analysis/i18n/sk.po

addons/account_bank_statement_extensions/i18n/pl.po

addons/account_budget/i18n/sk.po

addons/account_check_writing/i18n/es_EC.po

addons/account_followup/i18n/es_MX.po

addons/account_followup/i18n/ru.po

addons/account_followup/i18n/sk.po

addons/account_payment/i18n/cs.po

addons/account_payment/i18n/es_EC.po

addons/account_test/i18n/ru.po