chore: update ESLint configuration and improve code structure

[prabhuignoto]

Description

Additional context

---

What is the purpose of this pull request?

• Bug fix
• New Feature
• Documentation update
• Other

Before submitting the PR, please make sure you do the following

• Read the Contributing Guidelines.
• Check that there isn't already a PR that solves the problem the same way to avoid creating a duplicate.
• Provide a description in this PR that addresses what the PR is solving, or reference the issue that it solves (e.g. fixes #123).
• Ideally, include relevant tests that fail without this PR but pass with it.

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
react-chrono-uc7v	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jan 30, 2025 5:49am

[github-actions]

size-limit report 📦

Path	Size	Loading time (3g)	Running time (snapdragon)	Total time
dist/react-chrono.js	33.74 KB (+0.34% 🔺)	675 ms (+0.34% 🔺)	124 ms (+60.98% 🔺)	799 ms
dist/react-chrono.esm.js	32.24 KB (+0.69% 🔺)	645 ms (+0.69% 🔺)	93 ms (+15.93% 🔺)	738 ms
dist/react-chrono.umd.js	36.15 KB (+0.89% 🔺)	724 ms (+0.89% 🔺)	79 ms (-0.21% 🔽)	802 ms

[sonarqubecloud]

Quality Gate passed

Issues
5 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud