Add connected application panel.

https://code.usgs.gov/ghsc/nshmp/nshmp-apps/-/issues/294
https://code.usgs.gov/ghsc/nshmp/nshmp-apps/-/merge_requests/698
https://code.usgs.gov/ghsc/nshmp/nshmp-apps/-/merge_requests/699
https://code.usgs.gov/ghsc/nshmp/nshmp-apps/-/merge_requests/700