Fix TypeScript configuration and type errors

frontend/tsconfig.json

@@ -1,42 +1,41 @@
 {
   "compilerOptions": {
-    "target": "ES2020",
-    "useDefineForClassFields": true,
-    "module": "ESNext",
-    "lib": ["ES2020", "DOM", "DOM.Iterable"],
-    "skipLibCheck": true,
-
-    /* Bundler mode */
-    "moduleResolution": "bundler",
-    "allowImportingTsExtensions": true,
-    "resolveJsonModule": true,
-    "isolatedModules": true,
-    "noEmit": true,
-    "jsx": "preserve",
-
-    /* Linting */
+    "target": "esnext",
+    "module": "esnext",
     "strict": true,
-    "noUnusedLocals": false,
-    "noUnusedParameters": false,
-    "noFallthroughCasesInSwitch": true,
-
-    /* Paths */
-    "baseUrl": ".",
-    "paths": {
-      "@/*": ["./src/*"]
-    },
-    
-    /* Additional Options */
-    "allowJs": true,
+    "jsx": "preserve",
+    "moduleResolution": "node",
+    "skipLibCheck": true,
     "esModuleInterop": true,
+    "allowSyntheticDefaultImports": true,
     "forceConsistentCasingInFileNames": true,
-    "types": ["vite/client", "node"]
+    "useDefineForClassFields": true,
+    "sourceMap": true,
+    "baseUrl": ".",
+    "types": [
+      "webpack-env",
+      "node"
+    ],
+    "paths": {
+      "@/*": [
+        "src/*"
+      ]
+    },
+    "lib": [
+      "esnext",
+      "dom",
+      "dom.iterable",
+      "scripthost"
+    ]
   },
   "include": [
     "src/**/*.ts",
-    "src/**/*.d.ts",
     "src/**/*.tsx",
-    "src/**/*.vue"
+    "src/**/*.vue",
+    "tests/**/*.ts",
+    "tests/**/*.tsx"
   ],
-  "references": [{ "path": "./tsconfig.node.json" }]
+  "exclude": [
+    "node_modules"
+  ]
 }