fix(chat): typing request should have an optional guild id

stable/chat/v1/channels.proto

@@ -123,13 +123,3 @@ message DeleteChannelRequest {
 }
 // Used in the `DeleteChannel` endpoint.
 message DeleteChannelResponse {}
-
-// Used in `Typing` endpoint.
-message TypingRequest {
-  // The guild id of the channel the user is typing in.
-  uint64 guild_id = 1;
-  // The channel id of the channel the user is typing in.
-  uint64 channel_id = 2;
-}
-// Used in `Typing` endpoint.
-message TypingResponse {}

stable/chat/v1/messages.proto

@@ -677,3 +677,13 @@ message RemoveReactionRequest {
 }
 // Used in `RemoveReaction` endpoint.
 message RemoveReactionResponse {}
+
+// Used in `Typing` endpoint.
+message TypingRequest {
+  // The guild id of the channel the user is typing in.
+  optional uint64 guild_id = 1;
+  // The channel id of the channel the user is typing in.
+  uint64 channel_id = 2;
+}
+// Used in `Typing` endpoint.
+message TypingResponse {}