vue-gettext v2 expects a precise format of json-like data. With webpack, we have relied upon an internal "easygettext-loader" whose job was to parse a PO file format and convert it to vue-gettext's format.
With vite, this piece is missing. We load PO files using an internal "po-gettext-plugin". "vue2-gettext-init" should be changed so that it can convert the format from "po-gettext-plugin" to the right shape.