This change adds a pie chart widget to the web dashboard experience, helping users view dashboard information in a more visual and digestible way. It also includes tests and template updates to support the new widget reliably.

Description of the issue/feature this PR addresses:

Current behavior before PR:

Desired behavior after PR is merged:




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This update connects email marketing campaigns with CRM leads, opportunities, quotations, and invoiced sales using campaign tracking links. Business users can better see which mailings generate commercial activity, with supporting demo data and reporting improvements.

Task: https://www.odoo.com/web#id=1872198&action=333&active_id=965&model=project.task&view_type=form&menu_id=4720