Fix: add option to choose 24 hour working slot (#4018)

* Add option to choose 24 hour working slot

* fix spec

* add check to update open hour and close hour for open all day

* update 24 hour working slot change in widget side

* add validation to check open_all_day and closed_all_day true at the same time

db/migrate/20220216151613_add_open_all_day_to_working_hour.rb

@@ -0,0 +1,5 @@
+class AddOpenAllDayToWorkingHour < ActiveRecord::Migration[6.1]
+  def change
+    add_column :working_hours, :open_all_day, :boolean, default: false
+  end
+end