How do I make such a shape in the picture?

[blazing mist]

And what files and folders are needed for this form to work?

import * as ui from "mojang-minecraft-ui"
import { world } from "mojang-minecraft"


// Form server ui
let form1 = new ui.ActionFormData()
form.title("Menu")
form.body("Hello friend")
form.button("Click")
form.textField("Target, Target")

world.events.beforeItemUse.subscribe(eventData => {
    let player = eventData.source 
    let item = eventData.item

    if (item.id = "minecraft:compass") {
        form1.show(player).then(result=>{
            let selection = result.selection
            if(selection == 0){
                player.runCommand(
                    "gamemode c @s"
                )            }
        })
    }
})

I don't know why it doesn't work 😦