fix: resolve remaining ESLint error and install missing globals dependency

- Removed unused useCallback import from CitizensIssues.tsx
- Installed globals package required by eslint.config.js
- All ESLint errors and warnings now resolved

Lint now passes with 0 errors and 0 warnings.

web/src/pages/citizens/CitizensIssues.tsx

@@ -1,4 +1,4 @@
-import { useEffect, useState, useCallback } from 'react';
+import { useEffect, useState } from 'react';
 import { useNavigate } from 'react-router-dom';
 import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card';
 import { Button } from '@/components/ui/button';