Solution next happy number added

[Vipullakum007]

Related Issue

i want to add solution of "next happy number " problem #389
fixes : #389

Description

i have added solution of "next happy number " problem

Type of PR

• Bug fix
• Feature enhancement
• Documentation update
• Other (specify): _______________

Screenshots / Videos (if applicable)

NextHappyNumber.mp4

[Attach any relevant screenshots or videos demonstrating the changes]

Checklist

• I have performed a self-review of my code.
• I have read and followed the Contribution Guidelines.
• I have tested the changes thoroughly before submitting this pull request.
• I have provided relevant issue numbers, screenshots, and videos after making the changes.
• I have commented my code, particularly in hard-to-understand areas.

Additional Context

[Include any additional information or context that might be helpful for reviewers.]

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Name	Status	Preview	Comments	Updated (UTC)
codeharborhub-github-io	✅ Ready (Inspect)	Visit Preview	💬 1 unresolved	Jun 3, 2024 4:52pm

[deepsource-io]

Here's the code health analysis summary for commits 24f918d..f62cdc8. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
JavaScript	✅ Success		View Check ↗

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💡 If you’re a repository administrator, you can configure the quality gates from the settings.

[ajay-dhangar]

now remove code based on suggestions

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarCloud

[Vipullakum007]

hey @ajay-dhangar , updated as per your suggestion you can merge it

[ajay-dhangar]

Done

[Vipullakum007]

hey @ajay-dhangar , you add level3 easy problem "How many X's " , "Remove Duplicate" , then why level 2 by @manishh12 for "my meduim problems can you make level3.