Update Modus themes to version 4.1.0

Update Modus themes to version 4.1.0

* doc/misc/modus-themes.org: Update the manual.

* etc/themes/modus-operandi-deuteranopia-theme.el:
* etc/themes/modus-operandi-theme.el:
* etc/themes/modus-operandi-tinted-theme.el:
* etc/themes/modus-vivendi-deuteranopia-theme.el:
* etc/themes/modus-vivendi-theme.el:
* etc/themes/modus-vivendi-tinted-theme.el: Update theme files.

* etc/themes/modus-themes.el: Update main file to the latest version.

Detailed release notes here:
<https://protesilaos.com/codelog/2023-02-22-modus-themes-4-1-0/>.