Fix: Update SendableMessage to UserMessage and FileMessage (#250)

Update SendableMessage to UserMessage and FileMessage

Author: HoonBaek

src/lib/selectors.ts

@@ -357,7 +357,7 @@ export const getExitOpenChannel = (state: SendBirdState) => (
 /**
  * const freezeChannel = selectors.getFreezeChannel(currentChannel);
  * freezeChannel()
- *  .then((channel) => {})
+ *  .then(() => {})
  *  .catch((error) => {})
  */
 export const getFreezeChannel = () => (
@@ -572,11 +572,11 @@ export const getUpdateUserMessage = (state: SendBirdState) => (
  *  channel: GroupChannel | OpenChannel,
  *  message: SendableMessage,
  * )
- *  .then(() => {})
+ *  .then((deletedMessage) => {})
  *  .catch((error) => {})
  */
 export const getDeleteMessage = (state: SendBirdState) => (
-  (channel: GroupChannel | OpenChannel, message: SendableMessage): Promise<SendableMessage> => (
+  (channel: GroupChannel | OpenChannel, message: UserMessage | FileMessage): Promise<UserMessage | FileMessage> => (
     new Promise((resolve, reject) => {
       const pubSub = getPubSub(state);
       const { messageId } = message;