Add vitest as test framework and remove jest and its dependencies

vite.config.ts

@@ -1,13 +1,16 @@
 import { fileURLToPath, URL } from "node:url";
 
-import { defineConfig } from "vite";
+import { defineConfig } from "vitest/config";
 import vue from "@vitejs/plugin-vue";
 import vueJsx from "@vitejs/plugin-vue-jsx";
-import EnvironmentPlugin from 'vite-plugin-environment';
 
 // https://vitejs.dev/config/
 export default defineConfig({
-  plugins: [vue(), vueJsx(), EnvironmentPlugin('all')],
+  test: {
+    globals: true,
+    environment: 'jsdom'
+  },
+  plugins: [vue(), vueJsx()],
   resolve: {
     alias: {
       "@": fileURLToPath(new URL("./src", import.meta.url)),