Security: Fix 119 npm vulnerabilities by updating react-scripts to 5.0.1

[Copilot]

This PR addresses critical security vulnerabilities in the Kodflix React application by updating dependencies to secure versions.

Problem

The npm audit revealed 128 security vulnerabilities in the JS_HTML_CSS/kodflix project:

• 14 critical vulnerabilities including arbitrary code execution and authorization bypass
• 56 high-severity vulnerabilities with ReDoS, path traversal, and prototype pollution issues
• 58 moderate/low vulnerabilities with various security concerns

Key critical vulnerabilities resolved:

• @babel/traverse - Arbitrary code execution when compiling malicious code
• url-parse - Authorization bypass, open redirect, and path traversal vulnerabilities
• shell-quote - Command injection through improper input neutralization

Solution

Applied comprehensive security updates using npm's audit fix tools:

1. Non-breaking fixes: Applied npm audit fix to resolve compatible security updates
2. Breaking changes: Applied npm audit fix --force to update react-scripts from 3.4.1 to 5.0.1

Results

• 93% vulnerability reduction: From 128 to 9 total vulnerabilities
• All critical vulnerabilities eliminated (14 → 0)
• 89% high-severity reduction (56 → 6)
• Application functionality preserved and tested

Testing

• ✅ Application builds successfully with npm run build
• ✅ Development server runs without errors
• ✅ UI renders correctly with no regressions

The remaining 9 vulnerabilities are moderate-to-high severity issues that would require further breaking changes. The current state provides substantial security improvements while maintaining application stability.

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