Added farm theme and halloween theme

[MrGeorgeK55]

Added farm theme and halloween theme, halloween images generated by me with DALL-E 3, credits to @secondtruth for farm images

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 9.09091% with 10 lines in your changes missing coverage. Please review.

Project coverage is 16.92%. Comparing base (a177f0f) to head (c8909bd).

Files with missing lines	Patch %	Lines
src/panel/main.ts	0.00%	10 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #624      +/-   ##
==========================================
- Coverage   17.06%   16.92%   -0.14%     
==========================================
  Files          25       25              
  Lines        1260     1270      +10     
  Branches      167      169       +2     
==========================================
  Hits          215      215              
- Misses       1039     1049      +10     
  Partials        6        6              

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