Summary

I've added the support for IE11 + the background image

TO DO:

• check consumer-facing exports were added to src/index.ts (and stories only import from ../src except for test data & storybook)
• Proper documentation or storybook story was added for features that require explanation or tutorials
• Unit tests if possible

Checklist

Use strikethroughs to remove checklist items you don't feel are applicable to this PR.

• Any consumer-facing exports were added to src/index.ts (and stories only import from ../src except for test data & storybook)
• This was checked for cross-browser compatibility, including a check against IE11
• Proper documentation or storybook story was added for features that require explanation or tutorials
• Unit tests were updated or added to match the most common scenarios
• Each commit follows the convention