- fixed a source of possible errors in DetachableTab Widget.

- fixed gcode conversion/scale (on units change) when multiple values are found on each line
- replaced the pop-up window for the shortcut list with a new detachable tab
- removed the pop-up messages from the rotate, skew, flip commands

FlatCAMObj.py

@@ -3855,7 +3855,7 @@ class FlatCAMCNCjob(FlatCAMObj, CNCjob):
         gcodet_re_string = r'(?=.*(\=\s*[-\+]?\d*\.\d*))'
         self.g_t_re = re.compile(gcodet_re_string)
 
-        gcodenr_re_string = r'([+-]?\d*\.\d*)'
+        gcodenr_re_string = r'([+-]?\d*\.\d+)'
         self.g_nr_re = re.compile(gcodenr_re_string)
 
         # Attributes to be included in serialization