cubicweb-comment #774920 [view/layout] change a bit how a comment thread spreads on screen [open]

it seems like we currently have:

+-------+-----+
|main   |right|
|content|boxes+
+-------+     |
|comment|     |
|thread |     |
+-------+-----+

we might want:

+-------+-----+
|main   |right|
|content|boxes|
+-------+-----+
|comment      |
|thread       |
+-------------+

because quite often the right boxes column waste a lot of space

priorityminor
typeenhancement
done in<not specified>
closed by<not specified>