Fix: Update map and timeseries on state change using dropdown

Created by: nayakrahul

Description of PR This PR fixes:

• update map and timeseries on state change using dropdown
• hide current state in dropdown
• reset showalldistricts on state change

Relevant Issues
Fixes #2118 (closed)

Checklist

• Compiles and passes lint tests
• Properly formatted
• Tested on desktop
• Tested on phone

Screenshots

before

after