增加档号可删选

src/views/archives/manage/FileInsertModal.vue

@@ -25,7 +25,8 @@
                         placeholder="请选择" 
                         class="w-200px flex-1"
                         :class="{ 'border-red-500': validateForm.fileNumberError }"
-                        @change="fileNumberChange"
+                        filterable
+                        @change="fileNumberChange" 
                     >
                         <el-option 
                             v-for="item in fileNumberOptions"