Stripes 953v2 - Export sanitize logic for usage at the module level.

[JohnC-80]

This makes it possible to sanitize the value at the module level, before it enters the loop/value lifecycle of the form. This allows us to get in front of any malicious/problematic values that may be migrated directly to the backend and still uphold the UX of the editor.

The sanitize function requires the value (a string) and an optional override config for DOMPurify. The default configuration is adequate for handling the front-end capabilities of the editor.

import { sanitize } from 'stripes-template-editor';

const valueProp = sanitize(value);
// or
const valueProp = sanitize(value, overrideConfig);

Future work - flat-out remove the built-in sanitization in TemplateEditor.js

Refs STRIPES-953

[zburke]

Documentation 😍 I suggested a few copy edits that you can take or leave.