- final fix for the --shellvar having spaces within the assigned value; now they are retained

- updated the .POT file and the translation files leaving them incomplete

FlatCAMApp.py

@@ -2551,7 +2551,8 @@ class App(QtCore.QObject):
                         except:
                             command_tcl = i
 
-                    command_tcl_formatted = 'set shellvar_{nr} [list {cmd}]'.format(cmd=str(command_tcl), nr=str(cnt))
+                    command_tcl_formatted = 'set shellvar_{nr} "{cmd}"'.format(cmd=str(command_tcl), nr=str(cnt))
+
                     cnt += 1
 
                     # if there are Windows paths then replace the path separator with a Unix like one