- modified the method that detects which tab was closed in the Plot Area so it will no longer depend on it's translated text but on it's objectName set on the QTab creation

FlatCAMApp.py

@@ -3474,6 +3474,7 @@ class App(QtCore.QObject):
 
         # BookDialog(app=self, storage=self.defaults["global_bookmarks"], parent=self.ui).exec_()
         self.book_dialog_tab = BookmarkManager(app=self, storage=self.defaults["global_bookmarks"], parent=self.ui)
+        self.book_dialog_tab.setObjectName("bookmarks_tab")
 
         # add the tab if it was closed
         self.ui.plot_tab_area.addTab(self.book_dialog_tab, _("Bookmarks Manager"))
@@ -6013,19 +6014,17 @@ class App(QtCore.QObject):
         else:
             self.inform.emit('[ERROR_NOTCL] %s' % _("Adding tool from DB is not allowed for this object."))
 
-    def on_plot_area_tab_closed(self, title):
+    def on_plot_area_tab_closed(self, tab_obj_name):
         """
-        Executed whenever a tab is closed in the Plot Area.
+        Executed whenever a QTab is closed in the Plot Area.
 
-        :param title: The name of the tab that was closed.
+        :param title: The objectName of the Tab that was closed. This objectName is assigned on Tab creation
         :return:
         """
-        # FIXME: doing this based on translated title doesn't seem very robust.
 
-        if title == _("Preferences"):
+        if tab_obj_name == "preferences_tab":
             self.preferencesUiManager.on_close_preferences_tab()
-
-        if title == _("Tools Database"):
+        elif tab_obj_name == "database_tab":
             # disconnect the signals from the table widget in tab
             self.tools_db_tab.ui_disconnect()
 
@@ -6051,13 +6050,13 @@ class App(QtCore.QObject):
                     self.inform.emit('')
                     return
             self.tools_db_tab.deleteLater()
-
-        if title == _("Code Editor"):
+        elif tab_obj_name == "text_editor_tab":
             self.toggle_codeeditor = False
-
-        if title == _("Bookmarks Manager"):
+        elif tab_obj_name == "bookmarks_tab":
             self.book_dialog_tab.rebuild_actions()
             self.book_dialog_tab.deleteLater()
+        else:
+            return
 
     def on_plotarea_tab_closed(self, tab_idx):
         """