[FIX] stock: remove hover effect on popover

The hover effect on popover is the following: the popup is opened when
passing the mouse cursor on the icon and closed once it leave the icon.
The issue is if the popup has a button inside, clicking the button
freeze the popup. It cannot be closed unless the entire page is
refreshed

Task : 2199078

closes odoo/odoo#47408

X-original-commit: 25947264929a602256bd7febafa074ef7dabf7bd
Signed-off-by: William Henrotin <Whenrow@users.noreply.github.com>

addons/stock/static/src/js/popover_widget.js

@@ -20,7 +20,7 @@ var PopoverWidgetField = AbstractField.extend({
     supportedFieldTypes: ['char'],
     buttonTemplape: 'stock.popoverButton',
     popoverTemplate: 'stock.popoverContent',
-    trigger: 'hover focus',
+    trigger: 'focus',
     placement: 'top',
     html: true,
     color: 'text-primary',