feat:新增网站通知，右上角显示，只显示一次同一个内容

fcb-fronted/src/components/UploadText.vue

@@ -66,7 +66,7 @@ const handleSubmitShareText = ()=>{
       :input-style="{'border-radius':'20px','border':'1px dashed var(--el-border-color)','box-shadow':'none'}"
   >
   </el-input>
-  <el-button @click="handleSubmitShareText" style="position: absolute;right: 0;top: 0;border-radius: 0 20px 0 20px;margin: 1px;background: rgba(255,255,255,0.2)" size="large">{{t('send.share')}}</el-button>
+  <el-button @click="handleSubmitShareText" style="position: absolute;right: 0;bottom: 0;border-radius: 20px 0 20px 0;margin: 1px;background: rgba(255,255,255,0.2)" size="large">{{t('send.share')}}</el-button>
 </div>
 </template>