bug/5133 sequence diagram fix arrow corner

[Ronid1]

📑 Summary

Updated arrowhead coordinates to ensure smooth corner

Partially resolves #5133

📏 Design Decisions

n/a

📋 Tasks

Make sure you

• 📖 have read the contribution guidelines
• 💻 have added necessary unit/e2e tests.
• 📓 have added documentation. Make sure MERMAID_RELEASE_VERSION is used for all new features.
• 🔖 targeted develop branch

[netlify]

✅ Deploy Preview for mermaid-js ready!

Name	Link
🔨 Latest commit	d945030
🔍 Latest deploy log	https://app.netlify.com/sites/mermaid-js/deploys/65de38d34d31aa0008695292
😎 Deploy Preview	https://deploy-preview-5309--mermaid-js.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify site configuration.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 43.20%. Comparing base (31a287b) to head (d945030).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #5309   +/-   ##
========================================
  Coverage    43.20%   43.20%           
========================================
  Files           23       23           
  Lines         5115     5115           
  Branches        23       23           
========================================
  Hits          2210     2210           
  Misses        2904     2904           
  Partials         1        1           

Flag	Coverage Δ
unit	43.20% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.