fix open modal mobile

app/javascript/elements/history_back.js

@@ -0,0 +1,15 @@
+export default class extends HTMLElement {
+  connectedCallback () {
+    this.addEventListener('click', this.onClick)
+  }
+
+  disconnectedCallback () {
+    this.removeEventListener('click', this.onClick)
+  }
+
+  onClick = (e) => {
+    e.preventDefault()
+
+    window.history.back()
+  }
+}