Tags abilities e2e tests

[CDimonaco]

Description

Tags abilities e2e testing

How was this tested?

Automated tests

[arbulu89]

It looks good.
Take care of removing the its from the text please.

PD: I think we need to revisit a bit the code on disabled tags with @jagabomb
I saw now that we have only the cross of the existing tags with less opacity, which looks strange, in my head, when I commented it, the whole tag would go with less opacity, but this looks strange as well.

And besides that, now I check some code, the ExistingTag component name (which I proposed...) doesn't look really appropriate, as the component is the cross of the existing component, not the component itself. Maybe we should rename back to DeleteTagButton as you had at the beginning. I think I missunderstood what the code was doing, and thought that this was the whole tag itself, but is just the cross.