feat: section on web presentations, in German and English

A presentation built as a website instead of a slide file: why, for what,
and when slides are enough. The main drawing shows the same presentation as
a slide and as a web page on a projector, a laptop and a phone; the slide
keeps its format and shrinks, the page rearranges. Four small drawings stand
next to the reasons. No prices: none are agreed for this yet.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/web/src/content/en.ts

@@ -425,6 +425,58 @@ export const en: Content = {
       },
     ],
   },
+  presentations: {
+    label: "Web presentations",
+    title: { lead: "A presentation as a link.", rest: "Not as an attachment." },
+    intro:
+      "Most presentations are still slide files: one fixed format, sent around as an attachment. I build presentations as websites. They open in any browser, adapt to the screen they are shown on, and can contain things a slide cannot.",
+    compare: {
+      description:
+        "A slide keeps its fixed format on every screen and becomes too small to read on a phone. A web presentation rearranges its content for each screen.",
+      slides: "Slide file",
+      web: "Web presentation",
+      pickScreen: "Shown on",
+      screens: ["Projector", "Laptop", "Phone"],
+      slideNotes: [
+        "Made for this format",
+        "Still fits",
+        "Shrunk: too small to read",
+      ],
+      webNotes: ["Uses the full width", "Two columns", "One column, readable"],
+    },
+    reasons: [
+      {
+        title: "Fits every screen",
+        text: "A slide has one fixed format. A web presentation rearranges itself for the projector, the laptop and the phone.",
+      },
+      {
+        title: "One link, one version",
+        text: "Nobody has to ask which file is the current one. You change it in one place, and everyone who opens the link sees that state.",
+      },
+      {
+        title: "Shows the real thing",
+        text: "Current figures, a working demo or a clickable prototype can sit inside the presentation, instead of a screenshot of them.",
+      },
+      {
+        title: "Still useful afterwards",
+        text: "After the meeting it is a page people can read on their own, pass on and find again.",
+      },
+    ],
+    goodFor: {
+      title: "Typical uses",
+      items: [
+        "Company and product presentations",
+        "Pitches and offers sent as a link",
+        "Reports with figures that change",
+        "Screens at trade fairs and events",
+      ],
+    },
+    honest: {
+      title: "When slides are enough",
+      text: "For a single internal meeting, a slide file is quicker and cheaper. A web presentation is worth it when it is shown often, sent to many people, or stands for your company.",
+    },
+    cta: "Ask about a presentation",
+  },
   technology: {
     label: "Technology",
     title: { lead: "Which projects", rest: "I am right for." },