fix: Update patient_tracker.php (#6595)
* Update patient_tracker.php
fixes php8 error not showing up in the logs - related to the implode function blocking FlowBoard from proceeding when a patient replies "CALL" indicating they need a callback regarding an appointment reminder they received.
It also removes the ability to add a note about the Callback request. Instead it is replaced with an icon to directly open the SMS Bot so staff/front desk can directly reply to the patient via SMS, if SMS is allowed and they have a mobile/cell phone listed in demographics. If not, just the CALL icon is displayed.
* styling
* add attr_js from review
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Co-authored-by: stephen waite <stephen.waite@cmsvt.com>