Feature: As an end-user, I should be able to see the list of agents in the widget. (#461)

Co-authored-by: Pranav Raj S <pranavrajs@gmail.com>

app/javascript/widget/components/AvailableAgents.vue

@@ -0,0 +1,79 @@
+<template>
+  <div class="available-agents">
+    <div class="toast-bg">
+      <div class="avatars-wrap">
+        <GroupedAvatars :users="users" />
+      </div>
+      <div class="title">
+        {{ title }}
+      </div>
+    </div>
+  </div>
+</template>
+
+<script>
+import GroupedAvatars from 'widget/components/GroupedAvatars.vue';
+import { getAvailableAgentsText } from 'widget/helpers/utils';
+
+export default {
+  name: 'AvailableAgents',
+  components: { GroupedAvatars },
+  props: {
+    agents: {
+      type: Array,
+      default: () => [],
+    },
+    onClose: {
+      type: Function,
+      default: () => {},
+    },
+  },
+  computed: {
+    users() {
+      return this.agents.map(agent => ({
+        id: agent.id,
+        avatar: agent.avatar_url,
+        name: agent.name,
+      }));
+    },
+    title() {
+      return getAvailableAgentsText(this.agents);
+    },
+  },
+};
+</script>
+
+<style scoped lang="scss">
+@import '~widget/assets/scss/variables.scss';
+@import '~widget/assets/scss/mixins.scss';
+
+.available-agents {
+  display: flex;
+  position: relative;
+  justify-content: center;
+  margin: $space-normal $space-medium;
+  box-sizing: border-box;
+
+  .toast-bg {
+    border-radius: $space-large;
+    background: $color-body;
+    @include shadow-medium;
+  }
+
+  .title {
+    font-size: $font-size-default;
+    font-weight: $font-weight-medium;
+    color: $color-white;
+    padding: $space-one $space-normal $space-one $space-small;
+    line-height: 1.4;
+    display: inline-block;
+    vertical-align: middle;
+  }
+
+  .avatars-wrap {
+    display: inline-block;
+    vertical-align: middle;
+    margin-left: $space-small;
+  }
+}
+</style>