add initial dropdown with WaterSystem selection
implement filtering reservoirs by water system. removed custom marker icon
Change Dropdown text to Water Systems
Add pop ups back to markers
Remove log
Zoom in on water system, out on California
Refactor filter functions
Toggle detail visibility based on water system
Indent the addTo call
add circle marker for reservoirs
add percentage depndent styling
Merge branch 'features/select-water-systems'