Introduce an OnlineMode route and placeholder component, wire it into the router and Home menu (replace the removed local-vs-bot entry). Rename utils/index.ts to router/index.ts and add the new /onlineMode route; update main.ts to import the router from ./router and include the new app.css. Extract shared #game and .game-content styles into GUI/src/app.css and remove the duplicate styles from LocalMode.vue. Make small UI tweaks: adjust GameEndedMenu width, minor formatting/attribute fixes in Layout.vue and LocalMode.vue.
Jonas