fix(i18n): correct the ko and zh Orca Mobile "New" badge (#10664)

SidebarNav.c86d83b5c3 is the onboarding pill rendered beside Orca Mobile, so
"New" marks a new feature. Both locales had translated it as a create action —
ko 새로 만들기 ("create new"), zh 新建 ("create new") — which reads as a button.

The PR's other hunk (zh GH PR) already landed on main and resolved to a no-op.

Co-authored-by: Jinjing <6427696+AmethystLiang@users.noreply.github.com>

src/renderer/src/i18n/locales/ko.json

@@ -4223,7 +4223,7 @@
         "SidebarNav": {
           "80611a8b10": "검색",
           "0c3395fd32": "작업 트리 및 브라우저 탭 검색",
-          "c86d83b5c3": "새로 만들기",
+          "c86d83b5c3": "신규",
           "1b5c41caee": "Orca 모바일",
           "9c95e1ce91": "에이전트",
           "f323383e9a": "자동화",

src/renderer/src/i18n/locales/zh.json

@@ -4235,7 +4235,7 @@
         "SidebarNav": {
           "80611a8b10": "搜索",
           "0c3395fd32": "搜索工作树和浏览器选项卡",
-          "c86d83b5c3": "新建",
+          "c86d83b5c3": "新功能",
           "1b5c41caee": "Orca 手机端",
           "9c95e1ce91": "智能体",
           "f323383e9a": "自动化",