To preview the ui just press on this link: https://ztzbx.github.io/banking/static/index.html
To edit it, open banking.sln in Visual Studio.
To build it, run build.cmd. To run it, run the following commands to make a symbolic link in your server data directory:
cd /d [PATH TO THIS RESOURCE]
mklink /d X:\cfx-server-data\resources\[local]\banking dist
Afterwards, you can use ensure banking in your server.cfg or server console to start the resource.