- Move the web interface to the ECMind Bootstrap theme, vendored from `https://ecmind-css.api.ecmind.ch/ecmind-css/dist/ecmind.min.css`. - Follow the browser's light/dark preference automatically and switch over live when it changes. - Vendor the two theme fonts, Open Sans and JetBrains Mono, as woff2 in their latin and latin extended subsets. suvi loads nothing from the internet. - Drop plain Bootstrap, jQuery, which nothing used, and the ECMind color overrides in `site.css` that the theme now brings itself. - Draw the action icons as CSS masks, so they take the text color of their context in both themes instead of staying black. - Pick the suvi and ECMind logos per theme instead of always showing the light variant. - Let wide tables scroll on narrow screens instead of running off the page. - Replace every icon with its counterpart from the current Phosphor 2.1.1 regular set, which drops the last Phosphor 1.x exports. The suvi and ECMind logos stay. - Remove stray `</main>` and `</body>` tags from the task info page.