[FIX] pivot: prevent drag & drop in pivot side panel

[hokolomopo]

Description

In the pivot side panel, a pointerdown event on a button/input/select of an dimension should not trigger the drag & drop of the dimension.

The way we were handling that was all over the place. Some elements in the children had a pointerdown.stop, the <select> were handled directly before starting a drag & drop, and some elements didn't prevent a d&d where they should have.

We will now handle everything in the layout configurator. Before starting the d&d, we check that the event target is not an input/select, or has a class that indicates that it is interactive and should not trigger a d&d.

The solution is not the greatest, as we might forget some classes, but it beats having the children having to stop pointer events because of their parents.

Task: 6268403

review checklist

• feature is organized in plugin, or UI components
• support of duplicate sheet (deep copy)
• in model/core: ranges are Range object, and can be adapted (adaptRanges)
• in model/UI: ranges are strings (to show the user)
• undo-able commands (uses this.history.update)
• multiuser-able commands (has inverse commands and transformations where needed)
• new/updated/removed commands are documented
• exportable in excel
• translations (_t("qmsdf %s", abc))
• unit tested
• clean commented code
• track breaking changes
• doc is rebuild (npm run doc)
• status is correct in Odoo

[robodoo]