style(website): lowercase brand name, info@ email, European tagline

- Write the brand name as lowercase "dezky" across all user-facing copy
  (the legal entity "Dezky ApS" stays capitalised).
- Change the general contact email kontakt@dezky.eu -> info@dezky.eu.
- Footer tagline now "European" rather than only Danish business.
- Compare table header logo uses the on-dark treatment (signal-green
  squircle + carbon d) instead of a low-contrast green d on a light chip.

apps/website/pages/brand.vue

@@ -81,7 +81,7 @@ const toneRows: [string, string, string][] = [
   ['Product UI', 'Plain, instructional', 'Add a user to get started.'],
   ['Errors', 'Honest, useful', 'Couldn\'t reach the server. We\'re retrying.'],
   ['Empty states', 'Helpful, slightly dry', 'No files yet. Drag one in or invite your team.'],
-  ['Docs', 'Direct, practical', 'Point your domain\'s MX record at Dezky.'],
+  ['Docs', 'Direct, practical', 'Point your domain\'s MX record at dezky.'],
 ]
 type DoDont = { ok: boolean, label: string, bg: string, fg: string, accent: string, variant?: 'donut' | 'solid' | 'outline', transform?: string }
 const doDont: DoDont[] = [