Patch/update ts types and sass

[mrbinky3000]

What:

• Migrating away from node-sass to sass to avoid install issue where users need python to build node-sass
• Updated types for Image component and other polymorphic components that can change their HTML tag. Image, for instance, can be an "img" tag or a "div" tag, or any valid HTML tag at all.
• updating to newer node version in .nvmrc file
• updating all github actions to use newer node

Why:

• node-sass to sass needed to avoid python dependency
• updating types because I need to pass width and height attributes to the Image component but the Image component was listed as extending only the "div" HTML attributes. Image is polymorphic and can be any valid HTML tag.
• updating node version is for security reasons

How:

• Cautiously. A lot of people use this.

Checklist:

• Documentation added/updated
• Typescript definitions updated
• Tests added and passing
• Ready to be merged