chore: first step towards typescript

package.json

@@ -10,8 +10,8 @@
 		"build": "vite build",
 		"package": "svelte-kit package",
 		"preview": "vite preview",
-		"check": "svelte-check --tsconfig ./jsconfig.json",
-		"check:watch": "svelte-check --tsconfig ./jsconfig.json --watch",
+		"check": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json",
+		"check:watch": "svelte-kit sync && svelte-check --tsconfig ./tsconfig.json --watch",
 		"test": "playwright test",
 		"lint": "prettier --check --plugin-search-dir=. . && eslint .",
 		"format": "prettier --write --plugin-search-dir=. ."

src/app.d.ts

@@ -1,11 +1,11 @@
-// See https://kit.svelte.dev/docs/types#app
-// for information about these interfaces
-// and what to do when importing types
-declare namespace App {
-	// interface Locals {}
-	// interface Platform {}
-	// interface PrivateEnv {}
-	// interface PublicEnv {}
-	// interface Session {}
-	// interface Stuff {}
+declare global {
+	namespace App {
+		// interface Error {}
+		// interface Locals {}
+		// interface PageData {}
+		// interface PageState {}
+		// interface Platform {}
+	}
 }
+
+export {};

svelte.config.js

@@ -1,13 +1,9 @@
-import adapter from '@sveltejs/adapter-node';
-import preprocess from 'svelte-preprocess';
+import adapter from '@sveltejs/adapter-auto';
+import { vitePreprocess } from '@sveltejs/vite-plugin-svelte';
 
 /** @type {import('@sveltejs/kit').Config} */
 const config = {
-	// preprocess: [
-	// 	preprocess({
-	// 		postcss: true
-	// 	})
-	// ],
+	preprocess: vitePreprocess(),
 	kit: {
 		adapter: adapter()
 	}

tsconfig.json

@@ -0,0 +1,15 @@
+{
+    "extends": "./.svelte-kit/tsconfig.json",
+    "compilerOptions": {
+      "allowJs": true,
+      "checkJs": true,
+      "esModuleInterop": true,
+      "forceConsistentCasingInFileNames": true,
+      "resolveJsonModule": true,
+      "skipLibCheck": true,
+      "sourceMap": true,
+      "strict": true,
+      "moduleResolution": "bundler"
+    }
+  }
+