bookmark function should (optionally) not contain search query

[kreetrapper]

Currently when you bookmark a resource in the VLO it automatically appends your search query to the bookmark URL, e.g.

https://vlo.clarin.eu/record/http_58__47__47_hdl.handle.net_47_11858_47_00-1778-0000-0001-DDAF-D?q=T%C3%BCBa-DDC

This makes the resulting URL even longer than it already is and also has some privacy implications.
I think it would be good to make this feature optional and default to the behaviour of creating a link without this query attached.