Refine export label, and 'var' to 'const' in BookmarkProperties file

Author: kaustuvpokharel

src/qml/BookmarkList.qml

@@ -215,7 +215,7 @@ QfPaneDrawer {
     }
 
     MenuItem {
-      text: bookmarkList.multiSelection ? qsTr('Export Selected Bookmark(s)') : qsTr('Export All Bookmarks')
+      text: bookmarkList.multiSelection ? qsTr('Export Selected Bookmark(s)') : qsTr('Export All User Bookmarks')
       icon.source: Theme.getThemeVectorIcon("ic_download_white_24dp")
       enabled: !bookmarkList.multiSelection || (bookmarkList.model && bookmarkList.model.selectedCount > 0)
 

src/qml/BookmarkProperties.qml

@@ -213,9 +213,9 @@ QfPopup {
           bgcolor: "transparent"
 
           onClicked: {
-            var point = bookmarkModel.getBookmarkPoint(bookmarkProperties.bookmarkId);
-            var crs = bookmarkModel.getBookmarkCrs(bookmarkProperties.bookmarkId);
-            var coordinates = StringUtils.pointInformation(point, crs);
+            const point = bookmarkModel.getBookmarkPoint(bookmarkProperties.bookmarkId);
+            const crs = bookmarkModel.getBookmarkCrs(bookmarkProperties.bookmarkId);
+            const coordinates = StringUtils.pointInformation(point, crs);
             platformUtilities.copyTextToClipboard(nameField.text + '\n' + coordinates);
             displayToast(qsTr('Bookmark details copied to clipboard'));
           }