Added new features to bucket replication rules panel (#1412)

- Added Edit option for replication
- Sorted by priority in replication list
- Fixed an issue where storage class was not saved for replication rule
- Added metadata replication selector to both add & edit windows

Signed-off-by: Benjamin Perez <benjamin@bexsoft.net>

Co-authored-by: Benjamin Perez <benjamin@bexsoft.net>

models/bucket_replication_rule.go

@@ -49,6 +49,9 @@ type BucketReplicationRule struct {
 	// destination
 	Destination *BucketReplicationDestination `json:"destination,omitempty"`
 
+	// existing objects
+	ExistingObjects bool `json:"existingObjects,omitempty"`
+
 	// health check period
 	HealthCheckPeriod int64 `json:"healthCheckPeriod,omitempty"`
 
@@ -68,6 +71,9 @@ type BucketReplicationRule struct {
 	// Enum: [Enabled Disabled]
 	Status string `json:"status,omitempty"`
 
+	// storage class
+	StorageClass string `json:"storageClass,omitempty"`
+
 	// sync mode
 	// Enum: [async sync]
 	SyncMode *string `json:"syncMode,omitempty"`