Demo warning should be shown only if embedded by MPDS

[blokhin]

currently shown always:

visavis/plot/plot.view.tree

Line 20 in 20c592a

title \You are using the limited demo. Buy the full access and support our work.

[stan-donarise]

it is shown by default:

visavis/plot/plot.view.tree

Line 18 in 20c592a

show_demo_warn? true

in $mpds_visavis_app for example, it is disabled :

visavis/app/app.view.tree

Line 100 in 20c592a

show_demo_warn false

so we can set the default to false (here: visavis/plot/plot.view.tree) and set it to true only in MPDS embedding

[stan-donarise]

should be fixed by 6c1db79#diff-04c6abfbe1ac7b1d64036e5f34d0de0b690ca9c3887ffe91bcce975f7737db1eR18

[blokhin]

This logic is very unclear:

visavis/plot/plot.view.ts

Lines 53 to 56 in 67e014c

	const phase_data_demo = this.plot_raw()?.type()! == 'pd' ? this.phase_data_demo() : false
	const show_demo_warn = this.show_demo_warn()
	&& ! [ 'matrix', 'discovery' ].includes( this.plot_raw()?.type()! )
	&& ! phase_data_demo