Allow automation of Link column display text

When managing Link columns, there is currently no way to automate/generate a value for the “Text to display” attribute of the column.

If the “Text to display” follows a known pattern – like part (or all) of another column’s value, or the link’s slug – we should be able to define this in the “Default display text to show” with a formula-like expression. Or, allow this value to be set through Automations.