SearchKit - Add 'whole row' and 'add row' editable features

[colemanw]

Overview

Adds 2 useful modes to SearchKit editable settings:

1. Edit whole row: enables all fields in row to be edited and saved at once
2. Add new row: enables a new row to be added in-place

As an example, this adds an editable searchdisplay for editing custom field options, with the ability to add a new option inline:

[civibot]

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[allinappliadmin]

not able to apply the patch

[colemanw]

not able to apply the patch

@allinappliadmin you can test on the Online demo of this PR 🔗

[allinappliadmin]

not able to apply the patch

@allinappliadmin you can test on the Online demo of this PR 🔗

Formbuilder is not activated. I don't have that much time right now to set everything, sorry :-/