feat: F4.8b the documentation mode in the editor

Java's third mode button, the sidebar's text and structure field (dropped
with its middle under the pointer), items over the network that are moved,
resized by Java's rule, typed into on their Y.Text, coloured and set in
size and style from Java's menu, deleted; Java's paint per mode, measured
in F4.8a.

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

packages/editor/src/i18n/de.json

@@ -103,6 +103,19 @@
   "dnsServer.tabMX": "Mailaustausch (MX)",
   "dnsServer.tabNS": "Nameserver (NS)",
   "dnsServer.tables": "Einträge",
+  "docu.color": "Farbe",
+  "docu.fontSize": "Schriftgröße",
+  "docu.fontStyle": "Schriftstil",
+  "docu.rectangle": "Gliederungsfläche",
+  "docu.sidebar": "Dokumentation",
+  "docu.sizeLarge": "Groß",
+  "docu.sizeNormal": "Normal",
+  "docu.sizeVeryLarge": "Sehr Groß",
+  "docu.styleBold": "Fett",
+  "docu.styleItalic": "Kursiv",
+  "docu.stylePlain": "Normal",
+  "docu.swatch": "Farbe {index}",
+  "docu.text": "Text",
   "drop.hold": "Pakete verwerfen",
   "drop.list": "Verworfen: {count}",
   "drop.listLabel": "Verworfene Pakete",
@@ -295,6 +308,7 @@
   "menu.showDesktop": "Desktop anzeigen",
   "mode.currentSpeed": "Aktuelle Simulationsgeschwindigkeit",
   "mode.design": "Wechselt in den Entwurfsmodus",
+  "mode.documentation": "Wechselt in den Dokumentationsmodus",
   "mode.simulation": "Wechselt in den Aktionsmodus",
   "mode.speed": "Simulationsgeschwindigkeit anpassen",
   "network.dnsServer": "DNS-Server:",