Added leetcode solution of 0192

[mahek0620]

Related Issue

closes #824

Description

Added leetcode solution of word frequency

Type of PR

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

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.

[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

[deepsource-io]

Here's the code health analysis summary for commits 771d6ef..5b568d4. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
JavaScript	✅ Success		View Check ↗

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[ajay-dhangar]

Done

[ajay-dhangar]

@mahek0620, to calculate the score for your leaderboard, you'll need to add something to those files and then try it out at the bottom. Below is the code you need to include for your author profile in the documentation:

---

<h2>Authors:</h2>

<div style={{display: 'flex', flexWrap: 'wrap', justifyContent: 'space-between', gap: '10px'}}>
{['github_username'].map(username => (
 <Author key={username} username={username} />
))}
</div>