Move object and class editor actions next to the start of the line

It could be easier to link what actions correspond to what object/property. Moving them next to the start of the line would help make this clearer. Ideally it would be in between the name of the object/property and the toggler caret.

Improvement proposed first in https://github.com/xwiki/xwiki-platform/pull/3254#issuecomment-2218455818