Fix save book

src/main/java/de/zonlykroks/advancedscripts/screen/ScriptEditScreen.java

@@ -353,7 +353,7 @@ public class ScriptEditScreen extends Screen {
 
     @Override
     public boolean mouseScrolled(double mouseX, double mouseY, double amount) {
-        scroll -= amount / 10;
+        scroll -= Math.signum(amount);
         if (scroll > lines.size() - 1) {
             scroll = lines.size() - 1;
         }
@@ -363,11 +363,6 @@ public class ScriptEditScreen extends Screen {
         return true;
     }
 
-    @Override
-    public boolean mouseDragged(double mouseX, double mouseY, int button, double deltaX, double deltaY) {
-        return super.mouseDragged(mouseX, mouseY, button, deltaX, deltaY);
-    }
-
     @Override
     public boolean mouseClicked(double mouseX, double mouseY, int button) {
         return super.mouseClicked(mouseX, mouseY, button);
@@ -389,7 +384,11 @@ public class ScriptEditScreen extends Screen {
                 pages.add(page.toString());
                 page = new StringBuilder();
             }
-            page.append(line);
+            if (line.isEmpty()) {
+                page.append("\n");
+            } else {
+                page.append(line);
+            }
         }
         if (!page.isEmpty()) {
             pages.add(page.toString());