* refactor: trigger generate schedule when any change made in items table
* chore: added serial validation on server side
* test: serials updated in schedules after save
* fix: schedule not generating after updating some fields
* feat: generate_schedule is triggered on_save when items table is changed
* test: updated tests to check other field changes on save
* chore: removed serial validation function for schedules table and added no_of_visits validation function
* test: updated for manually deleted schedele rows
* refactor: updated validate_items_table_change to return bool
* test: updated test_schedule_with_serials to cover validate_items_table_change
* fix: linting
8261b2bb4f