Enhance Plaid connection management with re-authentication and error handling (#1854)

* Enhance Plaid connection management with re-authentication and error handling

- Add support for Plaid item status tracking (good/requires_update)
- Implement re-authentication flow for Plaid connections
- Handle connection errors and provide user-friendly reconnection options
- Update Plaid link token generation to support item updates
- Add localization for new connection management states

* Remove redundant 'reconnect' localization for Plaid items

config/locales/views/plaid_items/en.yml

@@ -18,3 +18,8 @@ en:
       status: Last synced %{timestamp} ago
       status_never: Requires data sync
       syncing: Syncing...
+      requires_update: Requires re-authentication
+      update: Update connection
+      connection_lost: Connection lost
+      connection_lost_description: This connection is no longer valid. You'll need to delete this connection and add it again to continue syncing data.
+      add_new: Add new connection

config/routes.rb

@@ -178,7 +178,9 @@ Rails.application.routes.draw do
   end
 
   resources :plaid_items, only: %i[create destroy] do
-    post :sync, on: :member
+    member do
+      post :sync
+    end
   end
 
   namespace :webhooks do