This fixes #3290 by 1) adding a new signal in SearchFilterAction to indicate the Criteria has changed 2) connecting to this signal in SearchToolbar and changing the visibility of the appropriate widgets when receiving it.
This fixes #3290 by 1) adding a new signal in SearchFilterAction to indicate the Criteria has changed 2) connecting to this signal in SearchToolbar and changing the visibility of the appropriate widgets when receiving it.


damianmoore/shotwell,h4ck3rm1k3/shotwell,damianmoore/shotwell,ritchiewilson/shotwell,abrauchli/shotwell,h4ck3rm1k3/shotwell,damianmoore/shotwell,Sanva/shotwell-gsoc,Sanva/shotwell-gsoc,ritchiewilson/shotwell,ritchiewilson/shotwell,abrauchli/shotwell,polymeris/shotwell,jimbonator/shotwell,jof/shotwell,polymeris/shotwell,h4ck3rm1k3/shotwell,jimbonator/shotwell,polymeris/shotwell,abrauchli/shotwell,jimbonator/shotwell,jof/shotwell,Sanva/shotwell-gsoc,jof/shotwell