feat: test coverage increase in ed25519.ts

[ANIRUDH-333]

Resolves #136
Completely covers the ed25519.ts file with 100% coverage.

File Name	Statements	Branches	Functions	Lines
Before:
All files	99.05	97.55	96.04	99.05
ed25519.ts	93.1	88.88	83.33	93.1
After:
All files	99.09	97.6	96.25	99.09
ed25519.ts	100	100	100	100

[thehenrytsai]

🎖️ 🚀 🙏

[ANIRUDH-333]

I can try to fix the lint error but not sure why the 1st one is failing.

[ANIRUDH-333]

Fixed the linter issues. Can you please review again @thehenrytsai ?

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 98.76%. Comparing base (8b6eb13) to head (47c2e3e).
Report is 5 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #815      +/-   ##
==========================================
+ Coverage   98.71%   98.76%   +0.04%     
==========================================
  Files          74       74              
  Lines       11469    11508      +39     
  Branches     1652     1662      +10     
==========================================
+ Hits        11322    11366      +44     
+ Misses        141      136       -5     
  Partials        6        6              

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[ANIRUDH-333]

Hii @mistermoe , @csuwildcat , @thehenrytsai , @LiranCohen. Could you please review this?

[LiranCohen]

🐐 🚀