refactor: migrate timeline.js to typescript

[0xbrayo]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 18 lines in your changes missing coverage. Please review.

Project coverage is 25.94%. Comparing base (291da6f) to head (60f1edf).

Files with missing lines	Patch %	Lines
src/visualizations/timeline.ts	0.00%	18 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #616      +/-   ##
==========================================
- Coverage   25.98%   25.94%   -0.05%     
==========================================
  Files          27       27              
  Lines        1643     1646       +3     
  Branches      279      293      +14     
==========================================
  Hits          427      427              
+ Misses       1190     1161      -29     
- Partials       26       58      +32     

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