Investigate optimisation of example assets

[owenatgov]

What

Investigate if we can optimise our css and js used in our example assets. Additionally assess if we can separate out full page examples into their own asset set or combine them with example assets.

Why

An offshoot of https://github.com/alphagov/govuk-design-system/issues/3732

We discovered whilst working on the above issue that full page examples are also using the standard website assets, meaning that we're importing component assets that are only relevant to those examples. We think we can make performance gains by moving these out of the main website assets and potentially combining them with example assets.

Whilst we're here, it's worth seeing how much we can optimise examples. We presume that example need all js and scss but is that the case?

Who needs to work on this

Developers

Who needs to review this

Developers

Done when

• [ ] We have investigated if moving full page examples out of the website asset set is beneficial
• [ ] We have investigated if we can optimise example assets
• [ ] We have made any changes