search: browse button fix
search: browse button fix

Signed-off-by: Kamil Neczaj <f5effa4f8fb04510feb8c36db9502b05ce6bf54d@cern.ch>
Reviewed-by: Lars Holm Nielsen <7eaffca9f7cd98839b5821d0d23e09ff764b82cd@cern.ch>

inveniosoftware/invenio-search,tiborsimko/invenio-search,inveniosoftware/invenio-search,tiborsimko/invenio-search