use fragment material and avatar star up also prevent capt. exp overflow

this took wayyyyyyyyyy longer than it shoud be

Common/Utils/ExcelReader/PlayerLevelData.cs

@@ -84,6 +84,11 @@ namespace Common.Utils.ExcelReader
 
             return new LevelData(level, exp);
         }
+
+        public int GetMaxPossibleExp()
+        {
+            return All.Select(x => x.Exp).Sum() - 1;
+        }
     }
 
 #pragma warning disable CS8618 // Non-nullable field must contain a non-null value when exiting constructor. Consider declaring as nullable.