embedding in websites support initializes to specify the conversation_id (#18602)

web/app/components/app/overview/embedded/index.tsx

           : ''},
   systemVariables: {
     // user_id: 'YOU CAN DEFINE USER ID HERE',
+    // conversation_id: 'YOU CAN DEFINE CONVERSATION ID HERE, IT MUST BE A VALID UUID',
   },
  }
 </script>

web/app/components/base/chat/embedded-chatbot/hooks.tsx

   const appId = useMemo(() => appData?.app_id, [appData])
 
   const [userId, setUserId] = useState<string>()
+  const [conversationId, setConversationId] = useState<string>()
   useEffect(() => {
-    getProcessedSystemVariablesFromUrlParams().then(({ user_id }) => {
+    getProcessedSystemVariablesFromUrlParams().then(({ user_id, conversation_id }) => {
       setUserId(user_id)
+      setConversationId(conversation_id)
     })
   }, [])
 
   const [conversationIdInfo, setConversationIdInfo] = useLocalStorageState<Record<string, Record<string, string>>>(CONVERSATION_ID_INFO, {
     defaultValue: {},
   })
-  const currentConversationId = useMemo(() => conversationIdInfo?.[appId || '']?.[userId || 'DEFAULT'] || '', [appId, conversationIdInfo, userId])
+  const currentConversationId = useMemo(() => conversationIdInfo?.[appId || '']?.[userId || 'DEFAULT'] || conversationId || '',
+    [appId, conversationIdInfo, userId, conversationId])
   const handleConversationIdInfoChange = useCallback((changeConversationId: string) => {
     if (appId) {
       let prevValue = conversationIdInfo?.[appId || '']