sort chores using due date, color tasks according to due level

src/components/Flatastic/style.module.css

@@ -20,3 +20,15 @@
 .userName {
     font-weight: bold;
 }
+
+.irregular {
+    background-color: #aaaaaa;
+}
+
+.due {
+    background-color: #e4877e;
+}
+
+.notDue {
+    background-color: #ccffcc;
+}