fix(h5): fix chooseFile protocols

packages/uni-api/src/protocols/media/chooseFile.ts

@@ -15,7 +15,7 @@ const CHOOSE_MEDIA_TYPE: API_TYPE_CHOOSE_FILE_OPTIONS['type'][] = [
 export const ChooseFileOptions: ApiOptions<API_TYPE_CHOOSE_FILE> = {
   formatArgs: {
     count(count, params) {
-      if (count! <= 0) {
+      if (!count || count <= 0) {
         params.count = 100
       }
     },

packages/uni-h5/src/service/api/index.ts

@@ -10,6 +10,7 @@ export * from './file/getFileInfo'
 export * from './file/openDocument'
 
 export * from './media/getImageInfo'
+export * from './media/chooseFile'
 
 export * from './network/request'
 export * from './network/downloadFile'