Fixed Localizations in citation relations (#13240)

* Fixed Localizations in citation relations

* Fix tooltip: 'Add selected entry(s) to library' (follow decision 0041 and localization rules)

Author: pranav0510s

jabgui/src/main/java/org/jabref/gui/entryeditor/citationrelationtab/CitationRelationsTab.java

@@ -176,10 +176,10 @@ private SplitPane getPaneAndStartSearch(BibEntry entry) {
 
         // Create import buttons for both sides
         Button importCitingButton = IconTheme.JabRefIcons.ADD_ENTRY.asButton();
-        importCitingButton.setTooltip(new Tooltip(Localization.lang("Add selected entries to database")));
+        importCitingButton.setTooltip(new Tooltip(Localization.lang("Add selected entry(s) to library")));
         styleTopBarNode(importCitingButton, 50.0);
         Button importCitedByButton = IconTheme.JabRefIcons.ADD_ENTRY.asButton();
-        importCitedByButton.setTooltip(new Tooltip(Localization.lang("Add selected entries to database")));
+        importCitedByButton.setTooltip(new Tooltip(Localization.lang("Add selected entry(s) to library")));
         styleTopBarNode(importCitedByButton, 50.0);
         hideNodes(importCitingButton, importCitedByButton);
 

jablib/src/main/resources/l10n/JabRef_en.properties

@@ -2768,7 +2768,7 @@ Get\ more\ themes...=Get more themes...
 Miscellaneous=Miscellaneous
 File-related=File-related
 
-Add\ selected\ entries\ to\ database=Add selected entries to database
+Add\ selected\ entry(s)\ to\ library=Add selected entry(s) to library
 The\ selected\ entry\ doesn't\ have\ a\ DOI\ linked\ to\ it.\ Lookup\ a\ DOI\ and\ try\ again.=The selected entry doesn't have a DOI linked to it. Lookup a DOI and try again.
 Cited\ By=Cited By
 Cites=Cites