Add breadcrumbs support across application (#1897)

* Add breadcrumbs support across application

Fixes #1896

* Potential fix for tests

* Simplify breadcrumbs implementation

Remove complex breadcrumbs logic from controllers and concern, replacing with a simpler default approach that sets a basic breadcrumb based on the current controller name

* Refactor page header and breadcrumbs rendering

Remove complex breadcrumbs helper method and update layout to use more flexible content_for approach for page headers and breadcrumbs

* Add fallback breadcrumbs rendering to settings layout

app/controllers/transactions_controller.rb

@@ -49,6 +49,7 @@ class TransactionsController < ApplicationController
   end
 
   private
+
     def search_params
       cleaned_params = params.fetch(:q, {})
             .permit(