fix: [file-upload] 修复上传没有后缀文件的显示问题 (#3233)

Author: chenxi-20

packages/vue/src/upload-list/src/mobile-first.vue

@@ -74,7 +74,9 @@
                       .filter((item, i, arr) => arr.length - 1 > i || arr.length === 1)
                       .join('.')
                   }}</span>
-                  <span>.{{ file.name.split('.')[file.name.split('.').length - 1] }}</span>
+                  <span v-if="file.name.includes('.')"
+                    >.{{ file.name.split('.')[file.name.split('.').length - 1] }}</span
+                  >
                 </div>
                 <div
                   data-tag="tiny-upload-list-operate"

packages/vue/src/upload-list/src/pc.vue

@@ -68,7 +68,7 @@
                     .filter((item, i, arr) => arr.length - 1 > i || arr.length === 1)
                     .join('.')
                 }}</span>
-                <span>.{{ file.name.split('.')[file.name.split('.').length - 1] }}</span>
+                <span v-if="file.name.includes('.')">.{{ file.name.split('.')[file.name.split('.').length - 1] }}</span>
               </div>
               <div class="operate-panel">
                 <slot name="operate" :file="file">