Add changes to CHANGELOG and fix New Library icons

Signed-off-by: kaiquekk <kaique.komata@gmail.com>

CHANGELOG.md

@@ -54,7 +54,7 @@ We refer to [GitHub issues](https://github.com/JabRef/jabref/issues) by using `#
 - We added the ability to execute default action in dialog by using with <kbd>Ctrl</kbd> + <kbd>Enter</kbd> combination [#4496](https://github.com/JabRef/jabref/issues/4496)
 - We grouped and reordered the Main Menu (File, Edit, Library, Quality, Tools, and View tabs & icons). [#4666](https://github.com/JabRef/jabref/issues/4666) [#4667](https://github.com/JabRef/jabref/issues/4667) [#4668](https://github.com/JabRef/jabref/issues/4668) [#4669](https://github.com/JabRef/jabref/issues/4669) [#4670](https://github.com/JabRef/jabref/issues/4670) [#4671](https://github.com/JabRef/jabref/issues/4671) [#4672](https://github.com/JabRef/jabref/issues/4672) [#4673](https://github.com/JabRef/jabref/issues/4673)
 - We added additional modifiers (capitalize, titlecase and sentencecase) to the Bibtex key generator. [#1506](https://github.com/JabRef/jabref/issues/1506)
-
+- We grouped the toolbar icons and changed the Open Library and Copy icons. [#4584](https://github.com/JabRef/jabref/issues/4584) 
 
 
 ### Fixed

src/main/java/org/jabref/gui/actions/StandardActions.java

@@ -61,8 +61,8 @@ public enum StandardActions implements Action {
     RELEVANCE(Localization.lang("Relevance"), IconTheme.JabRefIcons.RELEVANCE),
     RELEVANT(Localization.lang("Toggle relevance"), IconTheme.JabRefIcons.RELEVANCE),
     NEW_LIBRARY(Localization.lang("New library"), IconTheme.JabRefIcons.NEW),
-    NEW_LIBRARY_BIBTEX(Localization.lang("New %0 library", BibDatabaseMode.BIBTEX.getFormattedName())),
-    NEW_LIBRARY_BIBLATEX(Localization.lang("New %0 library", BibDatabaseMode.BIBLATEX.getFormattedName())),
+    NEW_LIBRARY_BIBTEX(Localization.lang("New %0 library", BibDatabaseMode.BIBTEX.getFormattedName()), IconTheme.JabRefIcons.NEW),
+    NEW_LIBRARY_BIBLATEX(Localization.lang("New %0 library", BibDatabaseMode.BIBLATEX.getFormattedName()), IconTheme.JabRefIcons.NEW),
     OPEN_LIBRARY(Localization.lang("Open library"), IconTheme.JabRefIcons.OPEN, KeyBinding.OPEN_DATABASE),
     IMPORT(Localization.lang("Import"), IconTheme.JabRefIcons.IMPORT),
     EXPORT(Localization.lang("Export"), IconTheme.JabRefIcons.EXPORT),