feat: Setup Unit Test Environment and Refactor Typescript Config (#365)

* modify tsconfig and set up unit tests

* generate .d.ts files

* setup project dependencies and configuration for unit tests

* Add test setup and layout-test-utils along with first spec

* Add paths back to tsconfig

* remove type=module from package.json

* Add typescript definition for .env

* update package-lock

client/tsconfig.json

@@ -2,14 +2,10 @@
   "compilerOptions": {
     "target": "ESNext",
     "useDefineForClassFields": true,
-    "lib": [
-      "DOM",
-      "DOM.Iterable",
-      "ESNext"
-    ],
+    "lib": ["DOM", "DOM.Iterable", "ESNext"],
     "allowJs": true,
     "skipLibCheck": false,
-    "esModuleInterop": true,
+    "esModuleInterop": false,
     "allowSyntheticDefaultImports": true,
     "strict": true,
     "forceConsistentCasingInFileNames": false,
@@ -19,13 +15,20 @@
     "isolatedModules": true,
     "noImplicitAny": false,
     "noEmit": false,
+    "declaration": true,
+    "declarationDir": "./types",
     "jsx": "react-jsx",
     "baseUrl": ".",
     "paths": {
       "~/*": ["./src/*"]
     }
   },
-  "include": [
-    "src"
-  ],
-}
+  "types": ["node", "jest", "@testing-library/jest-dom"],
+  "exclude": ["node_modules"],
+  "include": ["src/**/*", "setupTests.js", "vite.config.ts", "env.d.ts"],
+  "references": [
+    {
+      "path": "./tsconfig.node.json"
+    }
+  ]
+}