Add dprint formatter

dprint.json

@@ -0,0 +1,12 @@
+{
+  "typescript": {
+    "quoteStyle": "preferSingle"
+  },
+  "includes": ["src/**/*.{ts,tsx,js,jsx,cjs,mjs,json}"],
+  "excludes": [
+    "**/node_modules"
+  ],
+  "plugins": [
+    "https://plugins.dprint.dev/typescript-0.88.3.wasm"
+  ]
+}

src/digicode.ts

@@ -1,4 +1,4 @@
-import './style.css'
+import './style.css';
 
 const code = '1234';
 
@@ -16,12 +16,11 @@ function composeDigit(digit: number) {
   display.innerText = output;
   if (!code.startsWith(output)) {
     light.classList.add('is-error');
-    setTimeout(resetCode, 1000)
+    setTimeout(resetCode, 1000);
     return;
   }
   if (code === output) {
     light.classList.add('is-success');
-    return;
   }
 }