fix: simplify background heal and trigger heal items early (#9928)

Bonus fix during versioning merge one of the PR was missing
the offline/online disk count fix from #9801 port it correctly
over to the master branch from release.

Additionally, add versionID support for MRF

Fixes #9910
Fixes #9931

cmd/xl-v1-multipart.go

@@ -731,9 +731,9 @@ func (xl xlObjects) CompleteMultipartUpload(ctx context.Context, bucket string,
 	}
 
 	// Check if there is any offline disk and add it to the MRF list
-	for i := 0; i < len(onlineDisks); i++ {
-		if onlineDisks[i] == nil || storageDisks[i] == nil {
-			xl.addPartialUpload(bucket, object)
+	for i, disk := range onlineDisks {
+		if disk == nil || storageDisks[i] == nil {
+			xl.addPartial(bucket, object)
 			break
 		}
 	}