Allow to display embed images/pdfs when SERVE_DIRECT was enabled on MinIO storage (#35882) (#35917)

Backport #35882 by lifegpc

Co-authored-by: lifegpc <g1710431395@gmail.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

routers/web/repo/view.go

@@ -95,6 +95,7 @@ func getFileReader(ctx gocontext.Context, repoID int64, blob *git.Blob) (buf []b
 
 	meta, err := git_model.GetLFSMetaObjectByOid(ctx, repoID, pointer.Oid)
 	if err != nil { // fallback to a plain file
+		fi.lfsMeta = &pointer
 		log.Warn("Unable to access LFS pointer %s in repo %d: %v", pointer.Oid, repoID, err)
 		return buf, dataRc, fi, nil
 	}