Add Transaction Merchant management (#686)

* Add basid crud for merchant management

* Tweak UI and add localization

* Fix lint

* Add filtering by merchant

* Add tests

* Add stimulus controller to update avatar in merchant form

* Add line between merchant rows

* Change default merchant color

* Cleanup

config/locales/views/transaction/en.yml

@@ -27,5 +27,34 @@ en:
       income: Income
       submit: Add transaction
       transfer: Transfer
+    merchants:
+      create:
+        error: Error creating merchant
+        success: New merchant created successfully
+      destroy:
+        success: Merchant deleted successfully
+      edit:
+        title: Edit merchant
+      form:
+        name_placeholder: Merchant name
+        submit_create: Add merchant
+        submit_edit: Update
+      index:
+        empty: No merchants yet
+        new_long: New merchant
+        new_short: New
+        title: Merchants
+      list:
+        confirm_accept: Delete merchant
+        confirm_body: Are you sure you want to delete this merchant? Removing this
+          merchant will unlink all associated transactions and may effect your reporting.
+        confirm_title: Delete merchant?
+        delete: Delete merchant
+        edit: Edit merchant
+      new:
+        title: New merchant
+      update:
+        error: Error updating merchant
+        success: Merchant updated successfully
     update:
       success: Transaction updated successfully

config/routes.rb

@@ -25,7 +25,7 @@ Rails.application.routes.draw do
     # TODO: These are *placeholders*
     # Uncomment `only` and add the necessary actions as they are implemented.
     resources :rules, only: [ :index ]
-    resources :merchants, only: [ :index ]
+    resources :merchants, only: %i[index new create edit update destroy]
   end
 
   resources :transactions do