Consolidate and simplify account pages (#2462)

* Remove ScrollFocusable

* Consolidate and simplify account pages

* Lint fixes

* Fix tab param initialization

* Remove stale files

* Remove stale route, make accountable routes clearer

app/javascript/controllers/focus_record_controller.js

@@ -1,21 +0,0 @@
-import { Controller } from "@hotwired/stimulus";
-
-// Connects to data-controller="focus-record"
-export default class extends Controller {
-  static values = {
-    id: String,
-  };
-
-  connect() {
-    const element = document.getElementById(this.idValue);
-
-    if (element) {
-      element.scrollIntoView({ behavior: "smooth" });
-
-      // Remove the focused_record_id parameter from URL
-      const url = new URL(window.location);
-      url.searchParams.delete("focused_record_id");
-      window.history.replaceState({}, "", url);
-    }
-  }
-}