cubicweb #3390388 remove eid/ from cwuri [validation pending]

In the spirit of changeset a6c32edabc8d, keep using a resolvable URL in cwuri.
The cwuri is created in many place, only one of them had been fixed though.

prioritynormal
typebug
done in3.18.3
load left0.000
closed by#b0dd5b57d2d8 [dataimport, migration] more fixes in the spirit of a6c32edabc8d:
patch[dataimport, migration] more fixes in the spirit of a6c32edabc8d: [applied]