Use history mode for routing

frontend/firebase.json

@@ -0,0 +1,16 @@
+{
+  "hosting": {
+    "public": "dist",
+    "ignore": [
+      "firebase.json",
+      "**/.*",
+      "**/node_modules/**"
+    ],
+    "rewrites": [
+      {
+        "source": "**",
+        "destination": "/index.html"
+      }
+    ]
+  }
+}

frontend/src/router/index.js

@@ -25,7 +25,11 @@ const routes = [
 ];
 
 const router = new VueRouter({
+  mode: "history",
   routes,
+  scrollBehavior() {
+    return { x: 0, y: 0 };
+  },
 });
 
 export default router;