Firefox seems to have an issue with import assertions

[TheWebTech]

Firefox throws error:
Uncaught SyntaxError: import assertions are not currently supported

hs-code-block-web-component/src/js/code-block.js

Line 45 in 4b9608a

import syntaxHighlighting from "{{ get_asset_url('../css/components/prism.css')}}" assert { type: "css" };

Will need to see if we can do this without asserting.