Merge branch 'perf/upload-file-limit' into 'main_dev'

perf: 优化物模型导入只能选择json文件导入

See merge request yunteng/thingskit-front!889

@@ -36,6 +36,7 @@
               <Authority value="api:yt:things_model:import">
                 <Upload
                   v-if="isShowBtn"
+                  accept=".json,"
                   :show-upload-list="false"
                   :customRequest="handleImportModel"
                 >