Forms: range/slider field

[simison]

Basic range/slider field, both using browser's native range input type and better designed version (p1HpG7-wSU-p2).

[github-actions[bot]]

OpenAI suggested the following labels for this issue:

• [Feature Group] Content Management: The issue pertains to the management of form fields, which falls under content management features.
• [Feature] Forms Blocks: This label is relevant because the issue discusses the implementation of a basic range field, which is a form-related feature.
• [Feature] Custom CSS: The mention of additional settings could imply a need for customization, making Custom CSS pertinent for styling the range input.

[github-actions[bot]]

This issue could use some more labels, to help prioritize and categorize our work. Could you please add at least a [Type], a [Feature], and a [Pri] label?

[simison]

Shipped!