:speech_balloon: Updating text and literals.update copyright

src/page/index/top/top-setting.vue

@@ -10,7 +10,7 @@
       <div class="setting__header">版权信息</div>
       <div class="setting__body setting__about">
         <p>Version：PigX 2.0.0</p>
-        <p>Copyright: Pig4Cloud ©2018</p>
+        <p>Copyright: Pig4Cloud ©2018-2019</p>
       </div>
       <div class="setting__header">设置
         <small>(滑动鼠标下面还有更多设置)</small>