feat: add upload file list with progress (#1825)

frontend/src/components/prompts/UploadFiles.vue

@@ -0,0 +1,62 @@
+<template>
+  <div
+    v-if="filesInUploadCount > 0"
+    class="upload-files"
+    v-bind:class="{ closed: !open }"
+  >
+    <div class="card floating">
+      <div class="card-title">
+        <h2>{{ $t("prompts.uploadFiles", { files: filesInUploadCount }) }}</h2>
+
+        <button
+          class="action"
+          @click="toggle"
+          aria-label="Toggle file upload list"
+          title="Toggle file upload list"
+        >
+          <i class="material-icons">{{
+            open ? "keyboard_arrow_down" : "keyboard_arrow_up"
+          }}</i>
+        </button>
+      </div>
+
+      <div class="card-content file-icons">
+        <div
+          class="file"
+          v-for="file in filesInUpload"
+          :key="file.id"
+          :data-type="file.type"
+          :aria-label="file.name"
+        >
+          <div class="file-name">
+            <i class="material-icons"></i> {{ file.name }}
+          </div>
+          <div class="file-progress">
+            <div v-bind:style="{ width: file.progress + '%' }"></div>
+          </div>
+        </div>
+      </div>
+    </div>
+  </div>
+</template>
+
+<script>
+import { mapGetters } from "vuex";
+
+export default {
+  name: "uploadFiles",
+  data: function () {
+    return {
+      open: false,
+    };
+  },
+  computed: {
+    ...mapGetters(["filesInUpload", "filesInUploadCount"]),
+  },
+  methods: {
+    toggle: function () {
+      this.open = !this.open;
+    },
+  },
+};
+</script>