about: add staff panel

src/components/staff_panel/staff_panel.vue

@@ -0,0 +1,22 @@
+<template>
+  <div class="staff-panel">
+    <div class="panel panel-default base01-background">
+      <div class="panel-heading timeline-heading base02-background">
+        <div class="title">
+          {{ $t("about.staff") }}
+        </div>
+      </div>
+      <div class="panel-body">
+        <basic-user-card
+          v-for="user in staffAccounts"
+          :user="user"
+          v-bind:key="user.screen_name" />
+      </div>
+    </div>
+  </div>
+</template>
+
+<script src="./staff_panel.js" ></script>
+
+<style lang="scss">
+</style>