feat: add trig_to_exp(f::BasicSymbolic)

[oameye]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 37.03704% with 17 lines in your changes missing coverage. Please review.

Project coverage is 80.04%. Comparing base (a655cf8) to head (ad9b0c4).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
src/Symbolics/fourier.jl	23.80%	16 Missing ⚠️
src/Symbolics/Symbolics_utils.jl	83.33%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #34      +/-   ##
==========================================
- Coverage   83.25%   80.04%   -3.21%     
==========================================
  Files          10       10              
  Lines         412      431      +19     
==========================================
+ Hits          343      345       +2     
- Misses         69       86      +17     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.