refactor(SysConfigView): 优化值输入框为多行文本框

src/views/SysConfigView.vue

@@ -38,7 +38,7 @@
             </ElRadioGroup>
         </ElFormItem>
         <ElFormItem prop="value" label="值" v-else>
-            <ElInput v-model="model.value" placeholder="请输入值" />
+            <ElInput v-model="model.value" placeholder="请输入值" type="textarea" />
         </ElFormItem>
     </EditDialog>
 </template>