Account namespace updates: part 6 (transactions) (#904)

* Move Transaction to Account namespace

* Fix improper routes, improve separation of concerns

* Replace account transactions list partial with view

* Remove logs

* Consolidate transaction views

* Remove unused code

* Transfer style tweaks

* Remove more unused code

* Add back totals by currency helper

app/views/merchants/index.html.erb

@@ -35,6 +35,6 @@
   </div>
   <div class="flex justify-between gap-4">
     <%= previous_setting("Categories", categories_path) %>
-    <%= next_setting("Rules", transaction_rules_path) %>
+    <%= next_setting("Rules", account_transaction_rules_path) %>
   </div>
 </div>