Log Message:
py-textual: update to 0.75.1.

[0.75.0] - 2024-08-01

Added

    Added App.open_url to open URLs in the web browser. When running via the \ 
WebDriver, the URL will be opened in the browser that is controlling the app \ 
(web side not yet live) #4819
    Added Widget.is_mouse_over #4818
    Added node attribute to events.Enter and events.Leave #4818

Changed

    events.Enter and events.Leave events now bubble. #4818
    Renamed Widget.mouse_over to Widget.mouse_hover #4818

Fixed

    Fixed issue with mutate_reactive and data binding #4828