- fixed issue with arrays of items could not be added in the Gerber/Excellon Editor when a translation is used

- fixed issue in the Excellon Editor where the Space key did not toggle the direction of the array of drills
- combed the application strings all over the app and trimmed them up until those starting with letter 'O'
- updated the translation strings

appGUI/preferences/excellon/ExcellonEditorPrefGroupUI.py

@@ -161,7 +161,7 @@ class ExcellonEditorPrefGroupUI(OptionsGroupUI):
         # Slot length
         self.slot_length_label = QtWidgets.QLabel('%s:' % _('Length'))
         self.slot_length_label.setToolTip(
-            _("Length = The length of the slot.")
+            _("Length. The length of the slot.")
         )
         self.slot_length_label.setMinimumWidth(100)