Add test coverage support

vite.config.ts

@@ -1,8 +1,13 @@
 /// <reference types="vitest" />
+/// <reference types="vite/client" />
 import { defineConfig } from 'vite';
 
 export default defineConfig({
     test: {
-        environment: 'jsdom'
+        coverage: {
+            include: [ 'src' ]
+        },
+        environment: 'jsdom',
+        restoreMocks: true
     }
 });