Safari doesn't support CSS field-sizing: content so we can shim it for now

app/javascript/controllers/autoresize_controller.js

@@ -0,0 +1,13 @@
+import { Controller } from "@hotwired/stimulus"
+
+export default class extends Controller {
+  static targets = ["textarea", "wrapper"]
+
+  connect() {
+    this.resize()
+  }
+
+  resize() {
+    this.wrapperTarget.setAttribute("data-autoresize-clone-value", this.textareaTarget.value)
+  }
+}