199 Devilstable: neuter the navigational aid

[flicksolutions]

#199

please check if the funtionality still works. (I noticed that the scroll steps are now much smaller, but that's ok)

[vvvyyynet]

Everything seems to work. I tested with trackopad and mouse.

However, the brush is damaged:

• In large-screen mode appears squeezed to the top and it only scales correctly once you either click on "zurücksetzen" or manually add a fragment:

• In the vertical view it never displays:

Another issue: The brush and the table don't perfectly match any more:

[flicksolutions]

interesting... @vvvyyynet did you test with firefox? because I didn't get those issues. thanks for testing!