fix(ui): 打磨推荐追剧我的设置页间距与图标

lib/core/widgets/subpage_header.dart

@@ -8,7 +8,7 @@ const double _height = 52;
 const double _heightWithSubtitle = 64;
 const double _horizontal = 14;
 const double _backSize = 40;
-const double _backGap = 12;
+const double _backGap = 6;
 const double _titleFontSize = 18;
 const double _subtitleFontSize = 12;
 const double _actionGap = 8;
@@ -163,7 +163,7 @@ class AppSubpageHeader extends StatelessWidget {
                     style: TextStyle(
                       color: foreground,
                       fontSize: _titleFontSize,
-                      fontWeight: FontWeight.w800,
+                      fontWeight: FontWeight.w400,
                     ),
                   ),
                   if (subtitle != null) ...[