fix(home): 收紧首页顶部区间距

lib/core/theme/app_dimens.dart

@@ -112,6 +112,10 @@ abstract final class AppDimens {
   static const double homeSecondaryTagFont = 13;
   static const double homePrimaryCategoryGap = 24;
   static const double homeSecondaryTagGap = 18;
+  static const double homeSearchTopGap = 0;
+  static const double homeSearchPrimaryGap = 8;
+  static const double homePrimarySecondaryGap = 8;
+  static const double homeSecondaryGridGap = 10;
   static const double homeIconSlot = 44;
   static const double homeHeaderIcon = 22;