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/graphql/accounts.clj

@@ -18,7 +18,6 @@
    [iol-ion.tx :refer [random-tempid]]
    [com.brunobonacci.mulog :as mu]))
 
-
 (defn get-all-graphql [context args _]
   (assert-admin (:id context))
   (let [args                     (assoc args :id (:id context))