add unit tests for streamlit.py

[ColinDaglish]

Added unit tests for streamlit.py functions

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +13.33% 🎉

Comparison is base (9bd2cea) 60.58% compared to head (0839939) 73.92%.
Report is 2 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main      #20       +/-   ##
===========================================
+ Coverage   60.58%   73.92%   +13.33%     
===========================================
  Files          21       22        +1     
  Lines        1025     1158      +133     
===========================================
+ Hits          621      856      +235     
+ Misses        404      302      -102     

Files Changed	Coverage Δ
streamlit_app.py	0.00% <ø> (ø)
src/modules/streamlit.py	94.30% <100.00%> (+94.30%)	⬆️
tests/modules/test_streamlit.py	100.00% <100.00%> (ø)

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