chore(i18n): restore 'sshConfigSource' translation in multiple locales

- Reintroduced the 'sshConfigSource' translation key in English, Korean, Simplified Chinese, and Traditional Chinese locale files to ensure consistent localization for SSH configuration imports.

src/i18n/locales/en.json

@@ -1673,7 +1673,6 @@
     "importSelectSource": "Select import source",
     "importSessions": "Import",
     "importSuccess": "Imported {{count}} sessions",
-    "sshConfigSource": "SSH Config",
     "jumpHostChain": "Jump chain",
     "jumpHostCycle": "Loop detected",
     "jumpHostMissing": "Missing jump host",
@@ -1696,6 +1695,7 @@
     "sortDefault": "Custom Order",
     "sortNameAsc": "Name A → Z",
     "sortNameDesc": "Name Z → A",
+    "sshConfigSource": "SSH Config",
     "stopBits": "Stop bits",
     "terminalPath": "Terminal path",
     "ungroupedConnections": "Ungrouped",

src/i18n/locales/ko.json

@@ -1672,7 +1672,6 @@
     "importSelectSource": "가져오기 소스 선택",
     "importSessions": "가져오기",
     "importSuccess": "세션 {{count}}개를 가져왔습니다",
-    "sshConfigSource": "SSH 설정",
     "jumpHostChain": "점프 체인",
     "jumpHostCycle": "루프가 감지되었습니다",
     "jumpHostMissing": "점프 호스트가 없습니다",
@@ -1695,6 +1694,7 @@
     "sortDefault": "사용자 지정 순서",
     "sortNameAsc": "이름 오름차순(A → Z)",
     "sortNameDesc": "이름 내림차순(Z → A)",
+    "sshConfigSource": "SSH 설정",
     "stopBits": "정지 비트",
     "terminalPath": "터미널 경로",
     "ungroupedConnections": "그룹 없음",

src/i18n/locales/zh-CN.json

@@ -1672,7 +1672,6 @@
     "importSelectSource": "请选择要导入的配置来源",
     "importSessions": "导入配置",
     "importSuccess": "成功导入 {{count}} 个会话",
-    "sshConfigSource": "SSH 配置",
     "jumpHostChain": "跳板链路",
     "jumpHostCycle": "检测到循环",
     "jumpHostMissing": "跳板机已缺失",
@@ -1695,6 +1694,7 @@
     "sortDefault": "自定义顺序",
     "sortNameAsc": "名称 A → Z",
     "sortNameDesc": "名称 Z → A",
+    "sshConfigSource": "SSH 配置",
     "stopBits": "停止位",
     "terminalPath": "终端路径",
     "ungroupedConnections": "未分组",

src/i18n/locales/zh-TW.json

@@ -1672,7 +1672,6 @@
     "importSelectSource": "請選擇要匯入的設定來源",
     "importSessions": "匯入設定",
     "importSuccess": "成功匯入 {{count}} 個工作階段",
-    "sshConfigSource": "SSH 設定",
     "jumpHostChain": "跳板鏈路",
     "jumpHostCycle": "偵測到迴圈",
     "jumpHostMissing": "跳板機已缺失",
@@ -1693,6 +1692,7 @@
     "sortDefault": "自訂順序",
     "sortNameAsc": "名稱 A → Z",
     "sortNameDesc": "名稱 Z → A",
+    "sshConfigSource": "SSH 設定",
     "stopBits": "停止位",
     "terminalPath": "終端路徑",
     "user": "使用者",