Improvements for [BaBo duo] modules

I have made some improvements in [BaBo duo] modules.

Updates:
[BaBo duo] mono drawer module 30
-guides changed to reduce noise when pulling out
-front look changed

[BaBo duo] mono drawer module 60
-guides changed to reduce noise when pulling out
-front look changed

[BaBo duo] plate module (x3 & x5 version)
-front and back part reinforced to avoid deflection
-tolerance for springs changed
-improving the guides
-front look changed