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

test/clj/auto_ap/import/plaid_test.clj

@@ -8,9 +8,8 @@
                        :amount 123.45
                        :date "2023-01-01"})
 
-(t/deftest plaid->transaction 
+(t/deftest plaid->transaction
 
-  
   (t/testing "Should assign a plaid merchant if a merchant is found"
     (t/is (= "Home Depot" (-> (sut/plaid->transaction (assoc base-transaction
                                                              :merchant_name "Home Depot")
@@ -19,6 +18,6 @@
                               :plaid-merchant/name))))
   (t/testing "Should assign a default vendor if a merchant is found, with a matching vendor lookup"
     (t/is (= 12354 (-> (sut/plaid->transaction (assoc base-transaction
-                                                             :merchant_name "Home Depot")
-                                                      {"Home Depot" 12354})
-                              :transaction/default-vendor)))))
+                                                      :merchant_name "Home Depot")
+                                               {"Home Depot" 12354})
+                       :transaction/default-vendor)))))