docs: ✏️ Add description for embedded

Co-authored-by: MCausc78 <[email protected]>

Author: FabienBounoir

docs/events/gateway-events.mdx

@@ -1128,7 +1128,7 @@ Active sessions are indicated with an "online", "idle", or "dnd" string per plat
 | desktop?  | string | User's status set for an active desktop (Windows, Linux, Mac) application session |
 | mobile?   | string | User's status set for an active mobile (iOS, Android) application session         |
 | web?      | string | User's status set for an active web (browser, bot user) application session       |
-| embedded? | string | User's status set for ???                                                         |
+| embedded? | string | User's status set for an active embedded (Xbox, PlayStation, in-game) application session |
 
 #### Activity Object