Give the landing-page save button its own label

The landing form reused the legal namespace's "Save legal pages" label,
so two buttons shared that text and the legal e2e's page-wide button
lookup hit a strict-mode violation. Use a dedicated settings-namespace
"Save landing page" label instead.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EwZ4jR4KFAPvpjWevfUGX1

apps/web/src/pages/AdminSettingsPage.tsx

@@ -244,7 +244,6 @@ function PublicApiSettingsForm({ settings }: { settings: InstanceSettings }): Re
  */
 function LandingSettingsForm({ settings }: { settings: InstanceSettings }): React.JSX.Element {
   const { t } = useTranslation('settings');
-  const { t: tLegal } = useTranslation('legal');
   const queryClient = useQueryClient();
   const [content, setContent] = useState(settings['home.content']);
   const [error, setError] = useState<unknown>(null);
@@ -277,7 +276,7 @@ function LandingSettingsForm({ settings }: { settings: InstanceSettings }): Reac
         <FormSuccess message={saved ? t('landing.saved') : null} />
         <LegalTextField label={t('landing.label')} value={content} onChange={setContent} />
         <button type="submit" className="button" disabled={busy}>
-          {tLegal('admin.save')}
+          {t('landing.save')}
         </button>
       </form>
     </section>

packages/shared/i18n/de/settings.json

@@ -50,6 +50,7 @@
     "title": "Startseite",
     "hint": "Inhalt der öffentlichen Startseite (/) als Markdown. Leer lassen zeigt den eingebauten Willkommenstext.",
     "label": "Startseiten-Inhalt (Markdown)",
+    "save": "Startseite speichern",
     "saved": "Gespeichert."
   }
 }

packages/shared/i18n/en/settings.json

@@ -50,6 +50,7 @@
     "title": "Landing page",
     "hint": "The public home page (/) content as Markdown. Leave empty to show the built-in welcome text.",
     "label": "Landing page content (Markdown)",
+    "save": "Save landing page",
     "saved": "Saved."
   }
 }