fix(webui): preserve localized chat show-more copy

webui/src/i18n/locales/es/common.json

@@ -273,6 +273,7 @@
     "fallbackTitle": "Chat {{id}}",
     "loading": "Cargando…",
     "noSessions": "Todavía no hay sesiones.",
+    "showMore": "Mostrar {{count}} más",
     "actions": "Acciones del chat {{title}}",
     "activity": {
       "running": "Agent running",

webui/src/i18n/locales/fr/common.json

@@ -273,6 +273,7 @@
     "fallbackTitle": "Discussion {{id}}",
     "loading": "Chargement…",
     "noSessions": "Aucune session pour le moment.",
+    "showMore": "Afficher {{count}} de plus",
     "actions": "Actions de la discussion {{title}}",
     "activity": {
       "running": "Agent running",

webui/src/i18n/locales/id/common.json

@@ -273,6 +273,7 @@
     "fallbackTitle": "Obrolan {{id}}",
     "loading": "Memuat…",
     "noSessions": "Belum ada sesi.",
+    "showMore": "Tampilkan {{count}} lagi",
     "actions": "Aksi obrolan untuk {{title}}",
     "activity": {
       "running": "Agent running",

webui/src/i18n/locales/ko/common.json

@@ -273,6 +273,7 @@
     "fallbackTitle": "채팅 {{id}}",
     "loading": "불러오는 중…",
     "noSessions": "아직 세션이 없습니다.",
+    "showMore": "{{count}}개 더 보기",
     "actions": "{{title}} 채팅 작업",
     "activity": {
       "running": "Agent running",

webui/src/i18n/locales/vi/common.json

@@ -273,6 +273,7 @@
     "fallbackTitle": "Trò chuyện {{id}}",
     "loading": "Đang tải…",
     "noSessions": "Chưa có phiên nào.",
+    "showMore": "Hiển thị thêm {{count}}",
     "actions": "Tác vụ cho cuộc trò chuyện {{title}}",
     "activity": {
       "running": "Agent running",