[FIX] account: adapted reconciliation widget to bootstrap buttons and web client API changes
[FIX] web: fix view manager header height form view

in form view, the header height was higher than in other views (4 extra
pixels). This was caused by the floating buttons in
.oe-view-manager-buttons.  This commit forces the column to take exactly
30 px regardless of its content. (it is not a problem even if the
content takes extra lines)
[IMP] website_forum: when edit the question at the remove the tags, that tags are now unlink, and tags are render properly on input field when edit the question.