Region sidebar accordion (#601)

* Region sidebar accordion

* chore UI tweaks (#606)

* chore: reordered explore in other tmpl
chore: explore in other tmpl btns smaller
chore: regional features show tally

* bugfix: fix tests

* fix lint

* upgrade connectivity (599 bug fix included) (#612)

Co-authored-by: xgui3783 <xgui3783@gmail.com>