SMS Trait - add support for Autocomplete subscriber, notice fix

[eileenmcnaughton]

Overview

SMS Trait - add support for Autocomplete subscriber, notice fix

This just pulls out the Smarty notice fix, the function moves & the registration for the phone autocomplete widget from #29413 because there is still a bit to work through in there & these fixes can be added by themselves

Before

@colemanw's autocomplete support not in core, notice on SMSTemplate

Functions not in the trait

After

Above chunks done

Technical Details

@colemanw I think this will simplify working through the remaining parts

Comments

[civibot]

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