Initial enable banking implementation (#382)

* Initial enable banking implementation

* Handle multiple connections

* Amount fixes

* Account type mapping

* Add option to skip accounts

* Update schema.rb

* Transaction fixes

* Provider fixes

* FIX account identifier

* FIX support unlinking

* UI style fixes

* FIX safe redirect and brakeman issue

* FIX

- pagination max fix
- wrap crud in transaction logic

* FIX api uid access

- The Enable Banking API expects the UUID (uid from the API response) to fetch balances/transactions, not the identification_hash

* FIX add new connection

* FIX erb code

* Alert/notice box overflow protection

* Give alert/notification boxes room to grow (3 lines max)

* Add "Enable Banking (beta)" to `/settings/bank_sync`

* Make Enable Banking section collapsible like all others

* Add callback hint to error message

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Co-authored-by: Juan José Mata <juanjo.mata@gmail.com>

app/controllers/accounts_controller.rb

@@ -9,6 +9,7 @@ class AccountsController < ApplicationController
     @plaid_items = family.plaid_items.ordered
     @simplefin_items = family.simplefin_items.ordered.includes(:syncs)
     @lunchflow_items = family.lunchflow_items.ordered
+    @enable_banking_items = family.enable_banking_items.ordered.includes(:syncs)
 
     # Precompute per-item maps to avoid queries in the view
     @simplefin_sync_stats_map = {}