Add downloadUrl back to datasetActions

<script>

import { legacyNavigationMixin } from "components/plugins/legacyNavigation";

import { copy as sendToClipboard } from "utils/clipboard";

import { absPath } from "utils/redirect";

import { absPath, prependPath } from "utils/redirect";

import DatasetDownload from "./DatasetDownload";

export default {

        showHighlight: { type: Boolean, default: false },

    },

    computed: {

        downloadUrl() {

            return prependPath(`api/datasets/${this.item.id}/display?to_ext=${this.item.extension}`);

        },

        showDownloads() {

            return !this.item.purged && ["ok", "failed_metadata", "error"].includes(this.item.state);

        },