Enable batch editing

[germede]

By selecting some / all table records and the field(s) one would like to edit

[datenangebot]

Feature description: #377 (comment)

[quentinDupont]

@juliushaertl you remove this from 0.8 milestone, is it planned for the future ? and can we help (without coding but maybe testing or UX stuff) ?
It seems to me to be a very important feature : I create my table with importing datas, and then, I want to add a column and set quickly some datas → in Excel/Calc, I can do this in 30sec : write one field and "pull the cell" (don't know to say that in english), but here, it is very long

Thanks for all the work 👍

[juliushaertl]

Mainly a cleanup, we haven't planned to actively pick this up yet. In any way this is definitely something that would be nice to have, so hopefully we can schedule that at some point or of course would be open to any contributions from the community.