The dashboard web page in Server by Zaweba
Server by Zaweba's dashboard page at localhost lists your sites, their addresses and PHP versions, links to Adminer and Mailpit, and shows MariaDB details.

Alongside the desktop window, Server by Zaweba serves a small web page of its own: a dashboard at http://localhost: followed by its port. It lists your sites with their addresses and PHP versions, links to Adminer and to Mailpit's mail page, and shows the MariaDB connection details. Like everything else the app runs, it listens on this PC only.
Why a web page as well as the app
Most of the time you are working in a browser, not in the control panel. The dashboard means the list of sites is a bookmark away in the place you already are. You can open a site, jump to its database in Adminer or check the mail a form just sent without switching windows.
It also makes a natural start page while you work. Pin it as a tab, and every site you have made is one click away, with its PHP version shown so you remember which one it runs on.
What the page shows
Each site is listed with its addresses and its PHP version. The links to Adminer and Mailpit take you straight to the database manager and the mail catcher. Adminer is served from the dashboard, on this PC only, and opens already logged in at the database you choose.
The MariaDB connection details are the other thing people come here for. When you set up a CMS or a framework, its installer asks for the database host, port, user and password, and the dashboard is a convenient place to read the server's side of that. For a site's own database user, the details are shown once when you make it with New database and user, with a copy option, so keep them somewhere safe at that point.
Finding it
The control panel's Apache card links to the dashboard, and the tray menu can open it when the app is hidden in the notification area. Its address includes a port number, and the status bar at the bottom of the window lists every port in use, so you can always find it again.
Kept to your own PC
The dashboard binds to 127.0.0.1, the same as Apache, MariaDB and Mailpit. Other computers on your network can't open it, so the database details on it are not exposed to anyone else, and Windows doesn't show a firewall prompt. Server by Zaweba has no accounts, no cloud and no telemetry, so the page is purely for you.
How it fits with the control panel
The desktop app is where you change things: start and stop services, make sites, switch PHP versions, adjust php.ini and manage databases. The dashboard is where you read and jump. If a link on it doesn't respond, the control panel's status lights tell you which service is off, and the Logs page tells you why.
That split works well in practice. Leave the app in the tray with the services running, keep the dashboard in a browser tab, and you have everything for a day's local development within reach.