Move desktop game to web

I developed simple game using C#, Windows Forms and graphics library SFML.

Fire Tank Game

The game goal is to develop algorithm that performs by tanks (moving, shooting, etc) to extinguish the fire on the map.

This game can draw some kind of simple graphics, works with XML (to draw map, that opens from .xml file), has simple GUI (menu, combobox, datagridview, buttons, labels), uses API (Entity Framework) to query some data from small DB in SQL Server.

Now I would like try to turn it into web. So I need help with what languages (python, php, javascript?) and libraries I should use to develop the same game in web. In total necessary features:

1. Draw graphics.
2. Draw GUI.
3. Work with DB.
4. Work with XML.

Also, I implemented simple "sign in/up" logic. Is there any library that registers user and adds him to the DB? So, fifth featureis:

5. Sign in/up feature.

Last, game uses inconvenient way to develop algorithms (users need to choose items of algorithm from combobox). Is there some library that allows to do it with "drag & drop" way?

6. Drag & drop items to the table (datagridview).