Modifying text fields to textarea to manipulate variables

[shaneonabike]

Overview

Presently, the Searchkit Rewrite field is a textfield, which is fine if you want to append a few characters to the end or before a value. It gets extremely hard to read and also modify (I have to use a text editor beside) to modify if you start using SMARTY attributes.

A full description of this problem can be found on the civicrm-core issue queue 3893

I made the changes (#24809) but had an issue being able to rebase so I created a new PR sorry :)

cc @colemanw

[civibot]

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