Dark mode for the map is now suppoerted

Dark mode for the map is now supported.

Added daily air quality forecasts.

Improved performance

Added tide stations for BC’s Gulf Islands:
* Ganges, Salt Spring Island
* Fulford Harbour, Salt Spring Island
* Montague Harbour, Galiano Island
* Village Bay, Mayne Island
* Bedwell Harbour, Pender Islands
* Narvaez Bay, Saturna Island

Hello Oregon!

Added new Oregon locations:
* Columbia River & Willamette Valley (6 locations)
* North Coast (8 locations)
* Central Coast (14 locations)
* South Coast (7 locations)

Added Air Quality Index (AQI) to the current weather summary.

Dark mode support for tide and weather

Minor fixes