Better layout for checkbox?

[fengye87]

What steps did you take and what happened:

1. Create a form (better inside a stepper) with a checkbox as the last field
2. The checkbox is not properly padded and both field label and choice label was displayed

newPodModal := component.NewModal(component.TitleFromString("New Pod"))
newPodStepper := component.NewStepper("New Pod", "example.org/pods/create")
podNameForm := component.Form{
	Fields: []component.FormField{
		component.NewFormFieldText("Name", "name", ""),
	},
}
newPodStepper.AddStep("Name", podNameForm, "Step 1", "Choose pod name")
podImageForm := component.Form{
	Fields: []component.FormField{
		component.NewFormFieldText("Image", "image", ""),
		component.NewFormFieldCheckBox("Privileged", "privileged", []component.InputChoice{{
			Label:   "Privileged",
			Checked: false,
		}}),
	},
}
newPodStepper.AddStep("Image", podImageForm, "Step 2", "Choose pod image")
newPodModal.SetBody(newPodStepper)
newPodModal.SetSize(component.ModalSizeExtraLarge)

What did you expect to happen:

1. The checkbox should be properly padded
2. Either field label or choice label should be displayed

Environment:

• Octant version (use octant version): 0.25.1
• Kubernetes version (use kubectl version): 1.23.5
• OS (macOS 10.15, Windows 10, Ubuntu 19.10 etc): Fedora 35