Mobile Map - Add AQI Key

[Pujapuppy]

1. Add html for AQI Key Slide Up (includes the Region Wide Key for when a STA Alert is active). HTML is in the attached doc.
2. By default the div with the class aqi-slide-up contains the class aqi-default-pos
3. From default position - On click of the double arrow up, remove the class aqi-default-pos and add the class aqi-mid-pos
4. From mid position - On click of the double arrow up, remove the class aqi-mid-pos and add the class aqi-full-pos
5. From mid position - On click of the More AQI Information button, remove the class aqi-mid-pos and add the class aqi-full-pos
6. From mid position - On click of the double arrow down, remove the class aqi-mid-pos and add the class aqi-default-pos
7. From full position - On click of the double arrow down, remove the class aqi-full-pos and add the class aqi-mid-pos
8. Display the date that the map is currently displaying data for next to Showing: (example - Showing: May 5, 2021)
9. Add the class alert-on to the div with the class sta-key-row when a STA Alert is active

Design Links:
http://baaqmddesign.azurewebsites.net/Drawing_Tool/MobileMaps/MapDefault.html
http://baaqmddesign.azurewebsites.net/Drawing_Tool/MobileMaps/MapAQIMid.html
http://baaqmddesign.azurewebsites.net/Drawing_Tool/MobileMaps/MapAQIFull.html
http://baaqmddesign.azurewebsites.net/Drawing_Tool/MobileMaps/MapSTAAlert.html

MobileMapAQIKeyDesign.docx