refactor: 替换多页面国际化文本为硬编码中文内容

移除项目内大部分$lang()国际化调用，替换为直接中文文本，统一前端展示文案

components/pick-regions/pick-regions.vue

@@ -14,8 +14,8 @@
         <uni-popup type="bottom" ref="regionsRef">
             <view class="regions-picker-container">
                 <view class="picker-header">
-                    <view class="picker-action cancel" @click="$refs.regionsRef.close()">{{ $lang('common.cancel') }}</view>
-                    <view class="picker-action confirm" @click="confirmRegions">{{ $lang('common.done') }}</view>
+                    <view class="picker-action cancel" @click="$refs.regionsRef.close()">取消</view>
+                    <view class="picker-action confirm" @click="confirmRegions">完成</view>
                 </view>
                 <picker-view :value="multiIndex" @change="pickerViewColumnChange" class="picker-view">
                     <picker-view-column v-if="multiArray[0]">