update the chatbox

src/pages/admin/Activity.jsx

@@ -1,6 +1,7 @@
 import React, { useMemo, useState } from 'react';
 import {
   Activity, FilePlus2, LogIn, LogOut, Mic, ScanSearch, Send, ShieldAlert, UserCheck, UserPlus,
+  Users,
 } from 'lucide-react';
 import {
   Avatar, Badge, DataTable, MetricStrip, SearchInput, Surface, Timeline,
@@ -23,6 +24,7 @@ import { SkillSurface } from '@/components/skills/SkillSurface';
 const SEVERITY = {
   hire_candidate: 'high',
   create_position: 'high',
+  assign_employee: 'medium',
   screen_candidate: 'medium',
   start_interview: 'medium',
   signup: 'low',
@@ -50,6 +52,7 @@ const TIMELINE_LIMIT = 12;
  */
 const EVENT_ICON = {
   hire_candidate: UserCheck,
+  assign_employee: Users,
   create_position: FilePlus2,
   screen_candidate: ScanSearch,
   start_interview: Mic,