MessageActivity: add type enum

src/schemas/uncategorised/MessageActivity.ts

@@ -17,9 +17,19 @@
 */
 
 export interface MessageActivity {
-    type: 1 | 3 | 5;
+    type: MessageActivityType;
     session_id?: string;
     party_id?: string;
     name_override?: string;
     icon_override?: string;
 }
+
+export enum MessageActivityType {
+    JOIN = 1,
+    // @deprecated
+    SPECTATE = 2,
+    LISTEN = 3,
+    // @deprecated
+    WATCH = 4,
+    JOIN_REQUEST = 5,
+}