customizable themes3 dark mode3 push notifications3 chat bubbles2 chat list2 chat screen2 chat template2 chat ui2 emoji support2 in-app messaging2 messaging app2 react native components2 real-time chat2 user profile2 article1 blog1 bookmarks1 content filtering1 cross-platform1 expo1 light mode1 offline access1 react native1 react native cli1 react native expo1 rich text editor1 social sharing1 ui kit1