Only calculating the PDOS shows incorrect settings

[mbercx]

Describe the bug

When you only calculate the PDOS for a structure, the report shows None for some of the chosen parameters.

To Reproduce

Try to run a work chain that only calculates the PDOS

Expected behavior

The parameters should be properly extracted from the SCF of the PdosWorkChain, or we should rethink where these parameters are extracted from.

Screenshots

Version (if known)

Latest master.

[mbercx]

Only calculating the PDOS also doesn't actually show the Electronic Structure, since the _show_band_structure call is triggered only by the presence of the band_structure output:

aiidalab-qe/aiidalab_qe/node_view.py

Lines 486 to 491 in bf59d93

	if (
	"band_structure" not in self._results_shown
	and "band_structure" in self.node.outputs
	):
	self._show_band_structure()
	self._results_shown.add("band_structure")