fix donations url (#12925)

Author: Siedlerchr

src/main/java/org/jabref/gui/frame/MainMenu.java

@@ -353,7 +353,7 @@ private void createMenu() {
 
                 new SeparatorMenuItem(),
 
-                factory.createMenuItem(StandardActions.DONATE, new OpenBrowserAction(URLs.FORUM_URL, dialogService, preferences.getExternalApplicationsPreferences())),
+                factory.createMenuItem(StandardActions.DONATE, new OpenBrowserAction(URLs.DONATION_URL, dialogService, preferences.getExternalApplicationsPreferences())),
                 factory.createMenuItem(StandardActions.SEARCH_FOR_UPDATES, new SearchForUpdateAction(preferences, dialogService, taskExecutor)),
                 factory.createSubMenu(StandardActions.WEB_MENU,
                         factory.createMenuItem(StandardActions.OPEN_WEBPAGE, new OpenBrowserAction(URLs.WEBPAGE_URL, dialogService, preferences.getExternalApplicationsPreferences())),

src/main/java/org/jabref/gui/help/HelpAction.java

@@ -23,10 +23,7 @@ public HelpAction(HelpFile helpPage, DialogService dialogService, ExternalApplic
     }
 
     void openHelpPage(HelpFile helpPage) {
-        StringBuilder sb = new StringBuilder("https://docs.jabref.org/");
-        sb.append(helpPage.getPageName());
-        NativeDesktop.openBrowserShowPopup(sb.toString(), dialogService, externalApplicationPreferences
-        );
+        NativeDesktop.openBrowserShowPopup("https://docs.jabref.org/" + helpPage.getPageName(), dialogService, externalApplicationPreferences);
     }
 
     @Override

src/main/java/org/jabref/gui/util/URLs.java

@@ -9,7 +9,7 @@ public class URLs {
     public static final String FACEBOOK_URL = "https://www.facebook.com/JabRef/";
     public static final String GITHUB_URL = "https://github.com/JabRef/jabref";
     public static final String MASTODON_URL = "https://foojay.social/@jabref";
-    public static final String DONATE_URL = "https://donate.jabref.org";
+    public static final String DONATE_URL = "https://donations.jabref.org";
     public static final String DEV_VERSION_LINK_URL = "https://builds.jabref.org/master/";
     public static final String CHANGELOG_URL = "https://github.com/JabRef/jabref/blob/main/CHANGELOG.md";
     public static final String HELP_URL = "https://docs.jabref.org/";