Remove snow layer from ASA

[dgboss]

• Removes all snow related code on the front-end.
• Removes API endpoint for getting last snow date

Test Links:

Landing Page
MoreCast
Percentile Calculator
C-Haines
FireBat
FireBat bookmark
Auto Spatial Advisory (ASA)
HFI Calculator

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 79.70%. Comparing base (34fe9c7) to head (5522f5b).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3897      +/-   ##
==========================================
- Coverage   79.73%   79.70%   -0.04%     
==========================================
  Files         295      293       -2     
  Lines       10891    10863      -28     
  Branches      519      517       -2     
==========================================
- Hits         8684     8658      -26     
  Misses       2063     2063              
+ Partials      144      142       -2     

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