add more resource

lib/resource/assets.dart

@@ -26,4 +26,5 @@ class Assets {
   static String moneyIcon = "${rootIcon}money.png";
   static String transactionIcon = "${rootIcon}transaction.png";
   static String totalIcon = "${rootIcon}total.png";
+  static String crossIcon = "${rootIcon}cross.png";
 }

lib/resource/constanta_string.dart

+class ConstantString {
+  static String fromWidgetReimburse = "reimburse";
+  static String fromWidgetHistory = "history";
+}

lib/resource/font.dart

@@ -16,6 +16,7 @@ class FontWeightManager {
 }
 
 class FontSize {
+  static const double s8 = 8.0;
   static const double s10 = 10.0;
   static const double s12 = 12.0;
   static const double s14 = 14.0;