Reduce manhattan deps

plot_utils supports environment variables NOSHOW, CMAP; example tests labelled "XL"

This is more UI standard than the combo in bottom right corner.

As a consequence, hide the always empty status bar (for all views) and with this win more space for relevant content.

* reduce indirections
* reduce redundancy
* implementations in analogy to sample view
* rm job view docks class (integrated into jobview)

* reduce indirections
* reduce redundancy
* rm sample view actions class (had barely any functionality)
* rm sample view docks class (integrated into sampleview)

Add Q-Offset to QSpecScan

new fcts run_and_plot, run_and_save make simulations and tests more compact