feat: change SQL examples frontend text

frontend/src/i18n/en.json

@@ -7,7 +7,7 @@
     "AI Model Configuration": "AI Model Configuration"
   },
   "training": {
-    "data_training": "Data Training",
+    "data_training": "SQL Sample Lib",
     "problem_description": "Problem Description",
     "sample_sql": "Sample SQL",
     "search_problem": "Search Problem",
@@ -668,4 +668,4 @@
     "setting_successfully": "Setting Successfully",
     "customize_theme_color": "Customize theme color"
   }
-}
+}

frontend/src/i18n/zh-CN.json

@@ -7,7 +7,7 @@
     "AI Model Configuration": "模型配置"
   },
   "training": {
-    "data_training": "数据训练",
+    "data_training": "SQL 示例库",
     "problem_description": "问题描述",
     "sample_sql": "示例 SQL",
     "search_problem": "搜索问题",
@@ -668,4 +668,4 @@
     "setting_successfully": "设置成功",
     "customize_theme_color": "自定义主题色"
   }
-}
+}