refactor(frontend): 优化多个视图组件代码结构和功能

fix(frontend): 修复表单重置和刷新功能的潜在问题
style(frontend): 统一按钮样式和布局
feat(frontend): 在仪表盘添加文档链接
chore: 删除不再需要的开发数据库文件和git属性配置

backend/app/scripts/data/system_config.json

@@ -21,7 +21,7 @@
     "id": 3,
     "config_name": "网页图标",
     "config_key": "sys_web_favicon",
-    "config_value": "http://service.fastapiadmin.com/api/v1/static/image/favicon.ico",
+    "config_value": "http://service.fastapiadmin.com/api/v1/static/image/favicon.png",
     "config_type": true,
     "description": "网页图标",
     "creator_id": 1

backend/app/scripts/data/system_users.json

@@ -7,7 +7,7 @@
     "mobile": "15382112222",
     "email": "admin@qq.com",
     "gender": "0",
-    "avatar": "https://gw.alipayobjects.com/zos/rmsportal/BiazfanxmamNRoxxVxka.png",
+    "avatar": "http://service.fastapiadmin.com/api/v1/static/image/avatar.png",
     "status": true,
     "is_superuser": true,
     "last_login": null,
@@ -23,7 +23,7 @@
     "mobile": "15382112121",
     "email": "demo@qq.com",
     "gender": "1",
-    "avatar": "https://gw.alipayobjects.com/zos/rmsportal/BiazfanxmamNRoxxVxka.png",
+    "avatar": "http://service.fastapiadmin.com/api/v1/static/image/avatar.png",
     "status": true,
     "is_superuser": false,
     "last_login": null,