[I18N] Update translation terms from Transifex

addons/account/i18n/bg.po

addons/account/i18n/gu.po

addons/account/i18n/it.po

addons/account/i18n/ja.po

addons/account/i18n/lt.po

addons/account/i18n/ro.po

addons/account/i18n/sv.po

addons/account/i18n/vi.po

addons/account_accountant/i18n/bg.po

addons/account_analytic_default/i18n/bg.po

addons/account_asset/i18n/bg.po

addons/account_asset/i18n/fa.po

addons/account_asset/i18n/sv.po

addons/account_bank_statement_import/i18n/bg.po

addons/account_budget/i18n/bg.po

addons/account_budget/i18n/vi.po

addons/account_cancel/i18n/bg.po

addons/account_check_printing/i18n/bg.po

addons/account_tax_cash_basis/i18n/bg.po

addons/account_tax_python/i18n/bg.po