feat(credits): add in both nds and repo

i18n/locales/en.json

@@ -14,6 +14,24 @@
   "achievementsScreen": {
     "title": "Achievements"
   },
+  "creditsScreen": {
+    "title": "Credits",
+    "model3d": {
+      "label": "3D Model",
+      "author": "Nintendo DS Lite by Cianon",
+      "url": "skfb.ly/6ZDvQ - CC BY 4.0"
+    },
+    "css2d": {
+      "label": "2D CSS",
+      "author": "CSS Nintendo DS by A. Radevich",
+      "url": "codepen.io/aradevich/pen/mdRYzyJ"
+    },
+    "nintendo": {
+      "label": "UI Design & Sound Effects",
+      "author": "Nintendo DS",
+      "url": "nintendo.com - © Nintendo"
+    }
+  },
   "achievements": {
     "boot": "Boot up the system",
     "projects_visit": "Visit the projects\nsection",