convert to ts pt.2

package.json

@@ -29,7 +29,8 @@
     "electron": "wait-on http://localhost:8080 && electron .",
     "electron-dev": "concurrently \"yarn run dev\" \"yarn run electron\"",
     "preelectron-pack": "yarn run build",
-    "electron-pack": "electron-builder"
+    "electron-pack": "electron-builder",
+    "check": "svelte-check --tsconfig ./tsconfig.json"
   },
   "dependencies": {
     "custom-electron-titlebar": "^4.2.7",
@@ -40,7 +41,9 @@
     "@rollup/plugin-image": "^3.0.3",
     "@rollup/plugin-node-resolve": "^15.2.3",
     "@rollup/plugin-terser": "^0.4.4",
+    "@rollup/plugin-typescript": "^11.1.5",
     "@sveltejs/vite-plugin-svelte": "^3.0.1",
+    "@tsconfig/svelte": "^5.0.2",
     "autoprefixer": "^10.4.16",
     "concurrently": "^8.2.2",
     "electron": "^21.2.0",
@@ -56,7 +59,11 @@
     "rollup-plugin-svelte": "^7.1.6",
     "sirv-cli": "^2.0.2",
     "svelte": "^4.2.8",
+    "svelte-check": "^3.6.2",
+    "svelte-preprocess": "^5.1.3",
     "tailwindcss": "^3.3.6",
+    "tslib": "^2.6.2",
+    "typescript": "^5.3.3",
     "wait-on": "^7.2.0"
   }
-}
+}