Nicer selectors for integration testing

[JonasGruenwald]

I want to have some nicer, more "human-like" ways to select elements, similar to playwright's locators.
Here is an idea of expressing something like that with a builder pattern:

import chrobot/locator

/// Specify a button locator, then issue a command to it
pub fn wibble() -> Result(Wibble, Wobble) {
    locator.new()
    |> locator.role_button()
    |> locator.text("Submit")
    |> locator.click()
}

import chrobot/locator
import gleeunit/should

/// Use a locator to select an element and assert against an attribute
pub fn wibble() {
  locator.new()
  |> locator.role_button()
  |> locator.text("Submit")
  |> locator.timeout(1000)
  |> locator.get_attribute("data-lustre-on-click")
  |> should.be_ok
  |> should.equal("0-0-1")
}

import chrobot/locator

/// Use a locator to select an input and fill in text (focus+type)
pub fn wibble() {
  locator.new()
  |> locator.label("First Name")
  |> locator.fill("Lucy")
}

Locators would have built-in polling with a default timeout that can be specified as part of the builder with locator.timeout and will be set to a reasonable default otherwise.

In the example above, locator.click(), locator.get_attribute() and locator.fill() take in a locator and run a query against the browser with it, all functions before it are part of the locator builder.