feat: browser-aware CTAs, tidier hero demo, comparison guides link

- Hero CTAs: the install buttons are compact (just the browser name) so all
  three fit one line; JS detects the visitor's browser and expands that one
  to the full "Add to X" call to action. Unknown browsers stay compact.
- Hero demo: caption now sits directly under the two windows (absolutely
  positioned to the card cascade) instead of far below the tall scene. The
  scene keeps a fixed height that already fits the open popup, so the
  vertically centered hero never jumps when the popup toggles.
- The background window now also shows a (non-interactive) extension icon,
  making it clear both browsers have KoalaSync installed.
- Escape now also closes the demo popup.
- Added a link from the comparison table to the fuller alternatives/guides
  hub, localized in all 15 languages.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

website/locales/de.json

@@ -222,5 +222,6 @@
   "FAQ_HIDE_ALL": "Fragen ausblenden",
   "SELF_SHOW_SETUP": "Setup-Anleitung anzeigen",
   "SELF_HIDE_SETUP": "Setup-Anleitung ausblenden",
-  "HERO_TRUST": "Kostenlos · Open Source · Kein Account nötig"
+  "HERO_TRUST": "Kostenlos · Open Source · Kein Account nötig",
+  "COMP_MORE_GUIDES": "Ausführlicher Vergleich und weitere Alternativen"
 }

website/locales/en.json

@@ -222,5 +222,6 @@
   "FAQ_HIDE_ALL": "Hide questions",
   "SELF_SHOW_SETUP": "Show setup guide",
   "SELF_HIDE_SETUP": "Hide setup guide",
-  "HERO_TRUST": "Free · Open source · No account needed"
+  "HERO_TRUST": "Free · Open source · No account needed",
+  "COMP_MORE_GUIDES": "Full comparison and more alternatives"
 }

website/locales/es.json

@@ -222,5 +222,6 @@
   "FAQ_HIDE_ALL": "Ocultar preguntas",
   "SELF_SHOW_SETUP": "Mostrar guía de instalación",
   "SELF_HIDE_SETUP": "Ocultar guía de instalación",
-  "HERO_TRUST": "Gratis · Código abierto · Sin cuenta"
+  "HERO_TRUST": "Gratis · Código abierto · Sin cuenta",
+  "COMP_MORE_GUIDES": "Comparativa completa y más alternativas"
 }

website/locales/fr.json

@@ -222,5 +222,6 @@
   "FAQ_HIDE_ALL": "Masquer les questions",
   "SELF_SHOW_SETUP": "Afficher le guide d'installation",
   "SELF_HIDE_SETUP": "Masquer le guide d'installation",
-  "HERO_TRUST": "Gratuit · Open source · Sans compte"
+  "HERO_TRUST": "Gratuit · Open source · Sans compte",
+  "COMP_MORE_GUIDES": "Comparatif complet et autres alternatives"
 }

website/locales/it.json

@@ -222,5 +222,6 @@
   "FAQ_HIDE_ALL": "Nascondi le domande",
   "SELF_SHOW_SETUP": "Mostra la guida all'installazione",
   "SELF_HIDE_SETUP": "Nascondi la guida",
-  "HERO_TRUST": "Gratuito · Open source · Senza account"
+  "HERO_TRUST": "Gratuito · Open source · Senza account",
+  "COMP_MORE_GUIDES": "Confronto completo e altre alternative"
 }

website/locales/ja.json

@@ -222,5 +222,6 @@
   "FAQ_HIDE_ALL": "質問を隠す",
   "SELF_SHOW_SETUP": "セットアップガイドを表示",
   "SELF_HIDE_SETUP": "ガイドを隠す",
-  "HERO_TRUST": "無料 · オープンソース · アカウント不要"
+  "HERO_TRUST": "無料 · オープンソース · アカウント不要",
+  "COMP_MORE_GUIDES": "詳しい比較とその他の選択肢"
 }

website/locales/ko.json

@@ -222,5 +222,6 @@
   "FAQ_HIDE_ALL": "질문 숨기기",
   "SELF_SHOW_SETUP": "설치 가이드 보기",
   "SELF_HIDE_SETUP": "가이드 숨기기",
-  "HERO_TRUST": "무료 · 오픈소스 · 계정 불필요"
+  "HERO_TRUST": "무료 · 오픈소스 · 계정 불필요",
+  "COMP_MORE_GUIDES": "전체 비교 및 다른 대안 보기"
 }

website/locales/nl.json

@@ -222,5 +222,6 @@
   "FAQ_HIDE_ALL": "Vragen verbergen",
   "SELF_SHOW_SETUP": "Installatiehandleiding tonen",
   "SELF_HIDE_SETUP": "Handleiding verbergen",
-  "HERO_TRUST": "Gratis · Open source · Geen account nodig"
+  "HERO_TRUST": "Gratis · Open source · Geen account nodig",
+  "COMP_MORE_GUIDES": "Volledige vergelijking en meer alternatieven"
 }

website/locales/pl.json

@@ -222,5 +222,6 @@
   "FAQ_HIDE_ALL": "Ukryj pytania",
   "SELF_SHOW_SETUP": "Pokaż instrukcję instalacji",
   "SELF_HIDE_SETUP": "Ukryj instrukcję",
-  "HERO_TRUST": "Za darmo · Open source · Bez konta"
+  "HERO_TRUST": "Za darmo · Open source · Bez konta",
+  "COMP_MORE_GUIDES": "Pełne porównanie i więcej alternatyw"
 }

website/locales/pt-BR.json

@@ -222,5 +222,6 @@
   "FAQ_HIDE_ALL": "Ocultar perguntas",
   "SELF_SHOW_SETUP": "Mostrar guia de configuração",
   "SELF_HIDE_SETUP": "Ocultar guia",
-  "HERO_TRUST": "Grátis · Código aberto · Sem conta"
+  "HERO_TRUST": "Grátis · Código aberto · Sem conta",
+  "COMP_MORE_GUIDES": "Comparação completa e mais alternativas"
 }

website/locales/pt.json

@@ -222,5 +222,6 @@
   "FAQ_HIDE_ALL": "Ocultar perguntas",
   "SELF_SHOW_SETUP": "Mostrar guia de configuração",
   "SELF_HIDE_SETUP": "Ocultar guia",
-  "HERO_TRUST": "Grátis · Open source · Sem conta"
+  "HERO_TRUST": "Grátis · Open source · Sem conta",
+  "COMP_MORE_GUIDES": "Comparação completa e mais alternativas"
 }

website/locales/ru.json

@@ -222,5 +222,6 @@
   "FAQ_HIDE_ALL": "Скрыть вопросы",
   "SELF_SHOW_SETUP": "Показать инструкцию по установке",
   "SELF_HIDE_SETUP": "Скрыть инструкцию",
-  "HERO_TRUST": "Бесплатно · Открытый код · Без аккаунта"
+  "HERO_TRUST": "Бесплатно · Открытый код · Без аккаунта",
+  "COMP_MORE_GUIDES": "Полное сравнение и другие альтернативы"
 }

website/locales/tr.json

@@ -222,5 +222,6 @@
   "FAQ_HIDE_ALL": "Soruları gizle",
   "SELF_SHOW_SETUP": "Kurulum rehberini göster",
   "SELF_HIDE_SETUP": "Rehberi gizle",
-  "HERO_TRUST": "Ücretsiz · Açık kaynak · Hesap gerekmez"
+  "HERO_TRUST": "Ücretsiz · Açık kaynak · Hesap gerekmez",
+  "COMP_MORE_GUIDES": "Tam karşılaştırma ve diğer alternatifler"
 }

website/locales/uk.json

@@ -222,5 +222,6 @@
   "FAQ_HIDE_ALL": "Приховати запитання",
   "SELF_SHOW_SETUP": "Показати інструкцію з налаштування",
   "SELF_HIDE_SETUP": "Приховати інструкцію",
-  "HERO_TRUST": "Безкоштовно · Відкритий код · Без акаунта"
+  "HERO_TRUST": "Безкоштовно · Відкритий код · Без акаунта",
+  "COMP_MORE_GUIDES": "Повне порівняння та інші альтернативи"
 }

website/locales/zh.json

@@ -222,5 +222,6 @@
   "FAQ_HIDE_ALL": "收起问题",
   "SELF_SHOW_SETUP": "显示部署指南",
   "SELF_HIDE_SETUP": "收起指南",
-  "HERO_TRUST": "免费 · 开源 · 无需账号"
+  "HERO_TRUST": "免费 · 开源 · 无需账号",
+  "COMP_MORE_GUIDES": "完整对比与更多替代方案"
 }