SearchKit - Fix broken update dialog and add input type float

[colemanw]

Overview

Fixes a SearchKit regression in 5.36 where the bulk update action failed to show any fields. Also adds a widget for floating-point number fields.

Before

Cannot select fields in bulk update action. Floating point fields have input type=text.

After

Can select fields in bulk update action. Floating point fields have input type=number.

[civibot]

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[eileenmcnaughton]

Yep that fixes it!