fix: polish usage statistics ui (#3426)

* fix: improve usage statistics ui

* chore: remove unused token suffix translation

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Co-authored-by: Jason <farion1231@gmail.com>

src/i18n/locales/en.json

@@ -1345,7 +1345,6 @@
     "cacheTokens": "Cache Tokens",
     "realTotal": "Tokens Processed",
     "realTotalHint": "Input + Output + Cache Write + Cache Read",
-    "tokensSuffix": "tokens",
     "freshInput": "Fresh Input",
     "cacheHitRate": "Cache Hit Rate",
     "requestLogs": "Request Logs",

src/i18n/locales/ja.json

@@ -1345,7 +1345,6 @@
     "cacheTokens": "キャッシュトークン",
     "realTotal": "実消費トークン",
     "realTotalHint": "Input + Output + キャッシュ書込 + キャッシュ命中",
-    "tokensSuffix": "tokens",
     "freshInput": "新規入力",
     "cacheHitRate": "キャッシュヒット率",
     "requestLogs": "リクエストログ",

src/i18n/locales/zh-TW.json

@@ -1291,7 +1291,6 @@
     "cacheTokens": "快取 Token",
     "realTotal": "真實消耗 Tokens",
     "realTotalHint": "Input + Output + 快取建立 + 快取命中",
-    "tokensSuffix": "Tokens",
     "freshInput": "新增輸入",
     "cacheHitRate": "快取命中率",
     "requestLogs": "請求日誌",

src/i18n/locales/zh.json

@@ -1345,7 +1345,6 @@
     "cacheTokens": "缓存 Token",
     "realTotal": "真实消耗 Tokens",
     "realTotalHint": "Input + Output + 缓存写入 + 缓存命中",
-    "tokensSuffix": "tokens",
     "freshInput": "新增输入",
     "cacheHitRate": "缓存命中率",
     "requestLogs": "请求日志",