feat: add sort/reload ui-text keys for title bar

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: zigzagdev

client/src/locals/en/ui.json

@@ -25,6 +25,10 @@
   "no": "No",
   "appTitle": "World Heritage",
   "appTagline": "Learn by searching and comparing sites.",
+  "ascending": "Ascending",
+  "descending": "Descending",
+  "reload": "Reload",
+  "sortById": "Sort by ID",
   "all": "All",
   "keyword": "Keyword",
   "keywordPlaceholder": "Name / Country",

client/src/locals/ja/ui.json

@@ -25,6 +25,10 @@
   "no": "いいえ",
   "appTitle": "World Heritage",
   "appTagline": "検索・比較で世界遺産を学ぶ。",
+  "ascending": "昇順",
+  "descending": "降順",
+  "reload": "再読み込み",
+  "sortById": "ID で並び替え",
   "all": "すべて",
   "keyword": "キーワード",
   "keywordPlaceholder": "名称・国名",