refactor(orderTrack): enhance goods detail layout and functionality

- Updated the goods detail component to improve layout consistency and user experience.
- Added a button for adding new contracts and ensured proper handling of contract data display.
- Refined the sign contract dialog for better usability and streamlined the contract signing process.
- Adjusted styles for improved visual appeal and responsiveness.

src/views/OrderTrack/goodsDetail.vue

@@ -34,6 +34,7 @@
                 <el-select v-model="selectedLang" placeholder="" style="margin-left:10px;width: 5%;">
                 <el-select v-model="selectedLang" placeholder="" style="margin-left:10px;width: 5%;">
                     <el-option v-for="option in langOptions" :label="option.label" :value="option.value" :key="option.value"></el-option>
                     <el-option v-for="option in langOptions" :label="option.label" :value="option.value" :key="option.value"></el-option>
                 </el-select>
                 </el-select>
+                <el-button type="primary" @click="addContract" style="margin-left:10px;">新增合同</el-button>
             </div>
             </div>
             <div class="data-box th-all" style="margin-bottom:20px;">
             <div class="data-box th-all" style="margin-bottom:20px;">
                 <el-table :data="contractData" border>
                 <el-table :data="contractData" border>
@@ -150,7 +151,6 @@
                         </td>
                         </td>
                         <td>
                         <td>
                             <span class="label">联系人：</span>
                             <span class="label">联系人：</span>
-              <!-- <span class="value-text">&nbsp;{{ signContractData.pdfInfo && signContractData.pdfInfo.orderInfo && signContractData.pdfInfo.orderInfo.partyBContactName || '' }}</span> -->
                         </td>
                         </td>
                     </tr>
                     </tr>
                     <tr>
                     <tr>
@@ -273,7 +273,6 @@
                         </td>
                         </td>
                         <td>
                         <td>
                             <span class="label letter label-width">经办人：</span>
                             <span class="label letter label-width">经办人：</span>
-              <!-- <span class="value-text">{{ signContractData.pdfInfo.orderInfo && signContractData.pdfInfo.orderInfo.partyBContactName }}</span> -->
                         </td>
                         </td>
                     </tr>
                     </tr>
                     <tr>
                     <tr>