i18n: 替换硬编码文本为多语言配置

替换了多个组件中的硬编码文字，新增完善多语言翻译词条，包括通用、聊天、预约日期、门店等模块的翻译内容

components/chat-message/chat-message.vue

@@ -57,10 +57,10 @@
 		<view v-else-if="message.contentType == 'order'"><ns-chat-order :isCanSend="false" :orderId="message.order_id"></ns-chat-order></view>
 
 		<view class="no-connect-box" v-if="message.contentType == 'noline'">
-			<view class="no-connect">客服不在线</view>
+			<view class="no-connect">{{ $lang('chat.customerOffline') }}</view>
 		</view>
 		<view class="no-connect-box" v-if="message.contentType == 'online'">
-			<view class="no-connect">客服在线</view>
+			<view class="no-connect">{{ $lang('chat.customerOnline') }}</view>
 		</view>
 		<uni-popup ref="imgPopup" type="center">
 			<view class="imagePop">