The spacing in the country state search field has been adjusted so it aligns visually with similar selection fields. This creates a more consistent form experience for users without changing functionality.

There is a 2% margin added when searching for country states

Remove this margin to have the field look like the majority of `many2one` fields

task-5123126

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Forward-Port-Of: odoo/odoo#229290

The IoT device screens no longer show the last sent value widget or an unused hidden IP field. The device connection type is repositioned to improve form layout and readability, especially for devices such as receipt printers.

This PR removes the "last sent value" widget from the iot device views 
+ also removes the always invisible "iot ip" field 
+ also moves the connection type to the 1st column of the view to avoid 2nd column being bigger than the 1st for devices like receipt printers.

Odoo PR: https://github.com/odoo/odoo/pull/229918

The IoT Box homepage and device views no longer show the “last sent value” widget, removing a utility that was not needed in this view. The device details layout is also tidied up by removing an unused IP field and repositioning the connection type, making device information easier to scan.

This PR removes the "last sent value" utility from the iot box homepage

Enterprise PR: https://github.com/odoo/enterprise/pull/96276

This update adds automated test coverage for the Redsys payment integration, helping ensure payment transactions and processing flows behave as expected. It reduces the risk of future changes breaking payment handling, without changing the visible customer experience.

task-5033596