Function setRequired

setRequired(element, required): void
Modifies the required state of a form element.
Parameters
- element: HTMLInputElement | HTMLSelectElement | HTMLTextAreaElement
  The form element to modify.
  - Must be an instance of HTMLElement that supports the required attribute (e.g., input, select, textarea).
- required: boolean
  
  The desired required state. Set to true to make the element required, false to make it optional.
Returns void
Throws
If the provided element is null, undefined, or does not support the required attribute.

See
MDN Documentation for the required attribute

Example
```
// Get an input element by its GUID using ix.api.dom.getHtml
const inputElement = ix.api.dom.getHtml("<ELEMENT-GUID>");

// Make the input element required
ix.api.dom.setRequired(inputElement, true);

// Make the input element optional
ix.api.dom.setRequired(inputElement, false);
```