feat: comprehensive Biome linting fixes and code quality improvements

Major code quality overhaul addressing 58% of all linting issues:

• Type Safety Improvements:
  - Replace all any types with proper TypeScript interfaces
  - Fix Map component shadowing (renamed to CountryMap)
  - Add comprehensive custom error classes system
  - Enhance API route type safety

• Accessibility Enhancements:
  - Add explicit button types to all interactive elements
  - Implement useId() hooks for form element accessibility
  - Add SVG title attributes for screen readers
  - Fix static element interactions with keyboard handlers

• React Best Practices:
  - Resolve exhaustive dependencies warnings with useCallback
  - Extract nested component definitions to top level
  - Fix array index keys with proper unique identifiers
  - Improve component organization and prop typing

• Code Organization:
  - Automatic import organization and type import optimization
  - Fix unused function parameters and variables
  - Enhanced error handling with structured error responses
  - Improve component reusability and maintainability

Results: 248 → 104 total issues (58% reduction)
- Fixed all critical type safety and security issues
- Enhanced accessibility compliance significantly
- Improved code maintainability and performance

components/Map.tsx

@@ -1,10 +1,10 @@
 "use client";
 
-import { MapContainer, TileLayer, CircleMarker, Tooltip } from "react-leaflet";
+import { CircleMarker, MapContainer, TileLayer, Tooltip } from "react-leaflet";
 import "leaflet/dist/leaflet.css";
-import { getLocalizedCountryName } from "../lib/localization";
 import { useTheme } from "next-themes";
 import { useEffect, useState } from "react";
+import { getLocalizedCountryName } from "../lib/localization";
 
 interface CountryData {
   code: string;
@@ -17,7 +17,7 @@ interface MapProps {
   maxCount: number;
 }
 
-const Map = ({ countryData, maxCount }: MapProps) => {
+const CountryMap = ({ countryData, maxCount }: MapProps) => {
   const { theme } = useTheme();
   const [mounted, setMounted] = useState(false);
 
@@ -79,4 +79,4 @@ const Map = ({ countryData, maxCount }: MapProps) => {
   );
 };
 
-export default Map;
+export default CountryMap;