Remove bloben (unmaintained, website & docs down) (#4110)

- Last commit [7 months ago](53899e59ed)
- Website unreachable
- Documentation unreachable

README.md

@@ -325,7 +325,6 @@ _See also: [Comparison of CalDAV and CardDAV implementations - Wikipedia](https:
 [CalDAV](https://en.wikipedia.org/wiki/CalDAV) and [CardDAV](https://en.wikipedia.org/wiki/CardDAV) protocol web clients/interfaces.
 
 - [AgenDAV](https://agendav.github.io/agendav/) - Multilanguage CalDAV web client with a rich AJAX interface and shared calendars support. ([Source Code](https://github.com/agendav/agendav)) `GPL-3.0` `PHP`
-- [Bloben](https://bloben.com) - CalDAV web client. ([Demo](https://demo.bloben.com/api/app/v1/auth/login-demo?username=demo&password=Bg8v16a4q7gvC&redirect=https://demo.bloben.com/calendar?demo=true), [Source Code](https://github.com/nibdo/bloben-app)) `AGPL-3.0` `Docker`
 - [EteSync Web](https://www.etesync.com/faq/#web-client) - EteSync's official Web-based client (i.e., their Web app). ([Demo](https://client.etesync.com/), [Source Code](https://github.com/etesync/etesync-web)) `AGPL-3.0` `Javascript`
 - [Manage My Damn Life](https://intri.in/manage-my-damn-life/) - Manage my Damn Life (MMDL) is a self-hosted front end for managing your CalDAV tasks and calendars. ([Source Code](https://github.com/intri-in/manage-my-damn-life-nextjs)) `GPL-3.0` `Nodejs/Docker`