Implemented a select all button for the library import function (issue #7786)

CHANGELOG.md

@@ -24,6 +24,7 @@ Note that this project **does not** adhere to [Semantic Versioning](http://semve
 - We added a feature that allows the user to choose whether to trust the target site when unable to find a valid certification path from the file download site. [#7616](https://github.com/JabRef/jabref/issues/7616)
 - We added a feature that allows the user to open all linked files of multiple selected entries by "Open file" option. [#6966](https://github.com/JabRef/jabref/issues/6966)
 - We added a keybinding preset for new entries. [#7705](https://github.com/JabRef/jabref/issues/7705)
+- We added a select all button for the library import function. [#7786](https://github.com/JabRef/jabref/issues/7786)
 
 ### Changed
 

src/main/java/org/jabref/gui/importer/ImportEntriesDialog.fxml

@@ -19,6 +19,7 @@
             <CheckListView fx:id="entriesListView" VBox.vgrow="ALWAYS"/>
             <HBox spacing="4">
                 <Button onAction="#selectAllNewEntries" styleClass="text-button" text="%Select all new entries"/>
+                <Button onAction="#selectAllEntries" styleClass="text-button" text="%Select all entries"/>
                 <Button onAction="#unselectAll" styleClass="text-button" text="%Unselect all"/>
                 <HBox HBox.hgrow="ALWAYS"/>
                 <GridPane hgap="4.0" vgap="4.0">

src/main/java/org/jabref/gui/importer/ImportEntriesDialog.java

@@ -199,4 +199,9 @@ public void selectAllNewEntries() {
             }
         }
     }
+
+    public void selectAllEntries() {
+        unselectAll();
+        entriesListView.getCheckModel().checkAll();
+    }
 }

src/main/resources/l10n/JabRef_en.properties

@@ -1869,6 +1869,7 @@ Cancel\ import=Cancel import
 Continue\ with\ import=Continue with import
 Import\ canceled=Import canceled
 Select\ all\ new\ entries=Select all new entries
+Select\ all\ entries=Select all entries
 Total\ items\ found\:=Total items found:
 Selected\ items\:=Selected items:
 Download\ linked\ online\ files=Download linked online files