cubicweb #343544 reledit: have an edit icon appear when field is editable [resolved]

we should probably provide a separate zone to click on, independently of the content

this should allow to fix problem for fields whose content should be clickable (eg link) but are viewed as text to allow double-click

done in3.3.4
load left0.000
closed by#8c70ca715fe9 [reledit] have a link-free landing zone for mouse-clicks (closes #343544)