Add sanura as owner for navigation and fragment

RelNote: N/A
Test: N/A
Change-Id: I0c980283e55b88c9a28d2a0f8772cd6fa33c6663
diff --git a/navigation/OWNERS b/navigation/OWNERS
index 075d50d..4719789 100644
--- a/navigation/OWNERS
+++ b/navigation/OWNERS
@@ -3,6 +3,7 @@
 jbwoods@google.com
 danysantiago@google.com
 sergeyv@google.com
+sanura@google.com
 
 per-file settings.gradle = dustinlam@google.com, rahulrav@google.com