move subscribe to param select

...cripts/monitoring-location/components/hydrograph/index.js

...s/monitoring-location/components/hydrograph/index.spec.js

.../monitoring-location/components/hydrograph/legend.spec.js

...s/monitoring-location/components/hydrograph/parameters.js

assets/src/styles/components/hydrograph/_app.scss

assets/src/styles/pages/_monitoring-location.scss

wdfn-server/config.py

wdfn-server/waterdata/templates/base_plain.html

wdfn-server/waterdata/templates/macros/components.html

wdfn-server/waterdata/templates/monitoring_location.html