fix: make fields sorted by lexicographical order (#7711)

* fix: Random order of fields

* fix: Random order of fields

* fix: Random order of fields

* fix: Random order of fields

* fix: Random order of fields

* fix: change CHANGELOG.md

* modify code in ViewModel.

* Add a blank line for passing checkstyle.

* Make code logic simpler.

* fix the order for import.

* fix: use sortedList

CHANGELOG.md

@@ -550,6 +550,7 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 - We fixed an issue where the XMP Importer would incorrectly return an empty default entry when importing pdfs [#6577](https://github.com/JabRef/jabref/issues/6577)
 - We fixed an issue where opening the menu 'Library properties' marked the library as modified [#6451](https://github.com/JabRef/jabref/issues/6451)
 - We fixed an issue when importing resulted in an exception [#7343](https://github.com/JabRef/jabref/issues/7343)
+- We fixed an issue where the field in the Field formatter dropdown selection were sorted in random order. [#7710](https://github.com/JabRef/jabref/issues/7710)
 
 ### Removed
 

src/main/java/org/jabref/gui/commonfxcontrols/FieldFormatterCleanupsPanelViewModel.java

@@ -1,12 +1,15 @@
 package org.jabref.gui.commonfxcontrols;
 
+import java.util.Comparator;
+
 import javafx.beans.property.BooleanProperty;
 import javafx.beans.property.ListProperty;
 import javafx.beans.property.ObjectProperty;
 import javafx.beans.property.SimpleBooleanProperty;
 import javafx.beans.property.SimpleListProperty;
 import javafx.beans.property.SimpleObjectProperty;
 import javafx.collections.FXCollections;
+import javafx.collections.transformation.SortedList;
 import javafx.scene.control.SelectionModel;
 
 import org.jabref.gui.Globals;
@@ -22,7 +25,7 @@ public class FieldFormatterCleanupsPanelViewModel {
     private final BooleanProperty cleanupsDisableProperty = new SimpleBooleanProperty();
     private final ListProperty<FieldFormatterCleanup> cleanupsListProperty = new SimpleListProperty<>(FXCollections.observableArrayList());
     private final ObjectProperty<SelectionModel<FieldFormatterCleanup>> selectedCleanupProperty = new SimpleObjectProperty<>(new NoSelectionModel<>());
-    private final ListProperty<Field> availableFieldsProperty = new SimpleListProperty<>(FXCollections.observableArrayList(FieldFactory.getCommonFields()));
+    private final ListProperty<Field> availableFieldsProperty = new SimpleListProperty<>(new SortedList<>(FXCollections.observableArrayList(FieldFactory.getCommonFields()), Comparator.comparing(Field::getDisplayName)));
     private final ObjectProperty<Field> selectedFieldProperty = new SimpleObjectProperty<>();
     private final ListProperty<Formatter> availableFormattersProperty = new SimpleListProperty<>(FXCollections.observableArrayList(Cleanups.getBuiltInFormatters()));
     private final ObjectProperty<Formatter> selectedFormatterProperty = new SimpleObjectProperty<>();