EXT:cart causes all Dashboard widget titles to be displayed twice in TYPO3 v13

[johfeu]

Bug Report

Current Behavior
Cart replaces the Widget/Widget layout for all TYPO3 Dashboard widgets with EXT:cart/Resources/Private/Layouts/Widget/Widget.html, which renders a widget title. In TYPO3 v13, the widget title is already rendered by the Lit web component header, causing the title to appear twice.

Expected behavior/output
The widget title appears once (in the widget header), matching the behavior of the official TYPO3 v13 dashboard demo.

Environment

• TYPO3 version(s): 13.4
• cart version: 11.7

Possible Solution
Remove the Layout file and pageTS as the override is not needed anymore