Fixes issue with mapping values during the transactions import (#1327)

* Adds custom debounce timeout to autosubmit form controller

- There's a default debounce timeout based on element type
- You can parameterize debounce timeout on a data-attribute

* Adds corrections based on js_lint

* Restores sleep on test

---------

Co-authored-by: Nicolás Galdámez <nicolas.galdamez@unagisoftware.com>

test/system/imports_test.rb

@@ -101,7 +101,7 @@ class ImportsTest < ApplicationSystemTestCase
       within(form) do
         select = form.find("select")
         select "Depository", from: select["id"]
-        sleep 1
+        sleep 0.5
       end
     end