v1.3.1

[bryanjonker-illinois]

This pull request updates the breadcrumbs component to version 1.3.1 and includes improvements to the sample usage, CSS variables, and sample files. The main changes involve updating version numbers, refining sample HTML files, and simplifying the CSS for the breadcrumb component.

Version updates:

• Bumped the version from 1.3.0 to 1.3.1 in both package.json and builder/versions/ilw-breadcrumbs.1.3.json to reflect the latest changes. [1] [2]

Sample and demo improvements:

• Updated samples/index.html to use the latest production CDN for ilw-global.css and switched the script import to the correct .js file. Added a script to automatically set component attributes based on URL parameters, and removed the theme="blue" attribute for a more generic sample.
• Removed the unused samples/page.html file, consolidating the sample usage into a single file.

CSS and styling changes:

• Removed unused CSS variables for margin, text color, and background color from src/ilw-breadcrumbs.css to simplify the stylesheet.
• Updated the .breadcrumb.page margin to use the more generic --ilw-margin--side variable instead of the custom margin variable, ensuring consistency with other components.