* feat(react/svelte): add dark mode defaults * refactor(darkmode): minimap, edges, edge labels * chore(style): edge label color * feat(colorMode): add colorMode prop light/dark/system * chore(examples): cleanup * test(colorMode): add tests * chore(base.css): add dark base * chore(examples): cleanup
* feat(styles): create stylesheets for react and svelte based on one source * refactor(styling): cleanup * refactor(postcss): share a config * refactor(postcss): replace env hack with env file