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/import/manual/common.clj

@@ -22,9 +22,9 @@
 
 (defn parse-date [{:keys [raw-date]}]
   (when-not
-      (re-find #"\d{1,2}/\d{1,2}/\d{4}" raw-date)
+   (re-find #"\d{1,2}/\d{1,2}/\d{4}" raw-date)
     (throw (Exception. (str "Date " raw-date " must match MM/dd/yyyy"))))
-  (try 
+  (try
 
     (parse-u/parse-value :clj-time "MM/dd/yyyy" raw-date)
     (catch Exception e