Show hide 'run in slintpad' button with same logic as copy paste code button.
Move std-widgets into reference.
Stop using code styling for h3 headers.
Make better use of Astro to reduce runtime javascript.
Make better use of Astro to ensure UI is built at build time and isn't dynamic at runtime.
Fix very broken github link.
Move some items around and group std-widgets similar to element reference.
Move Timer to elements.
Use the simpler :::tip[Tip] markdown style.
Update Astro and the link validator.
