Rewrote toString methods in Expense, Income and Item

src/main/java/no/ntnu/idatt1002/demo/data/Economics/Expense.java

@@ -66,6 +66,6 @@ public class Expense extends Item{
      */
     @Override
     public String toString() {
-        return super.toString()+category.toString()+"\n";
+        return super.toString()+"\ncategory="+category.toString()+"\n";
     }
 }

src/main/java/no/ntnu/idatt1002/demo/data/Economics/Income.java

@@ -73,6 +73,6 @@ public class Income extends Item{
      */
     @Override
     public String toString() {
-        return super.toString()+category.toString()+"\n";
+        return super.toString()+"\ncategory="+category.toString()+"\n";
     }
 }

src/main/java/no/ntnu/idatt1002/demo/data/Economics/Item.java

@@ -138,10 +138,10 @@ public abstract class Item {
             isReoccuring = "Not reoccurring";
         }
         if(!description.isBlank()){
-            return "\n"+date+"\n"+description+"\n"+amount+"\n"+isReoccuring+"\n";
+            return "\ndate=" + date+"\ndescription=" + description+"\namount="+amount+"\nisReoccuring="+isReoccuring;
         }
         else{
-            return "\n"+date+"\n"+amount+"\n"+isReoccuring+"\n";
+            return "\ndate="+date+"\namount="+amount+"\nisReoccuring="+isReoccuring;
         }
     }