[FIX] web: fix can't open date picker on graph views

Issue

	- Install CRM
	- CRM > Reports > Activities
	- Add a custom filter > Created on
	- Select the date

	You can't, the date picker is not shown

Cause

	Actually, the date picker is shown but
	very quickly and it is closed by a scroll
	event thrown by Chart.js.

Solution

	Close the date picker only if the user
	scrolls manually.

OPW-2245019

closes odoo/odoo#50482

X-original-commit: bda320052ac937f5bc17c7da81d84633d72a8370
Signed-off-by: Jason Van Malder (jvm) <jvm@odoo.com>

addons/web/static/tests/fields/basic_fields_tests.js

@@ -3478,7 +3478,7 @@ QUnit.module('basic_fields', {
 
         assert.containsOnce($('body'), '.bootstrap-datetimepicker-widget', "datepicker should be opened");
 
-        form.el.dispatchEvent(new Event('scroll'));
+        form.el.dispatchEvent(new Event('wheel'));
         assert.containsNone($('body'), '.bootstrap-datetimepicker-widget', "datepicker should be closed");
 
         form.destroy();