Transactions cleanup (#817)

An overhaul and cleanup of the transactions feature including:

- Simplification of transactions search and filtering
- Consolidation of account sync logic after transaction change
- Split sidebar modal and modal into "drawer" and "modal" concepts
- Refactor of transaction partials and folder organization
- Cleanup turbo frames and streams for transaction updates, including new Transactions::RowsController for inline updates
- Refactored and added several integration and systems tests

test/models/account/syncable_test.rb

@@ -1,6 +1,18 @@
 require "test_helper"
 
 class Account::SyncableTest < ActiveSupport::TestCase
+  include ActiveJob::TestHelper
+
+  setup do
+    @account = accounts(:savings_with_valuation_overrides)
+  end
+
+  test "triggers sync job" do
+    assert_enqueued_with(job: AccountSyncJob, args: [ @account, Date.current ]) do
+      @account.sync_later(Date.current)
+    end
+  end
+
   test "account has no balances until synced" do
     account = accounts(:savings_with_valuation_overrides)