Add vendor pre-population for bulk code and individual edit forms

- Add vendor-changed HTMX handlers for both bulk code and individual edit
- Pre-populate default account at 100% when vendor is selected and no accounts exist
- Fix render-accounts-section to render from step-params correctly
- Change bulk code vendor-changed from hx-get to hx-post to include form data
- Add routes for vendor-changed endpoints
- Update e2e tests to cover vendor pre-population
- Run lein cljfmt fix across codebase

src/clj/auto_ap/datomic/yodlee_merchants.clj

@@ -6,8 +6,8 @@
 (defn get-merchants [_]
   ;; TODO admin?
   (->>
-    (dc/q {:find  ['(pull ?e [:yodlee-merchant/name :yodlee-merchant/yodlee-id :db/id])]
-           :in    ['$]
-           :where [['?e :yodlee-merchant/name]]}
-          (dc/db conn))
-    (mapv first)))
+   (dc/q {:find  ['(pull ?e [:yodlee-merchant/name :yodlee-merchant/yodlee-id :db/id])]
+          :in    ['$]
+          :where [['?e :yodlee-merchant/name]]}
+         (dc/db conn))
+   (mapv first)))