docs: Actualize README for v5

[yevdyko]

Related Issue

N/A

PR Type

• 🐛 Bug Fix
• ✨ New Feature
• 🔨 Code Refactor
• 📝 Documentation Update
• 🧪 Test Update
• 🔧 Build/CI Update
• 🧹 Chore
• ⏪ Revert

Description

The README still referenced v5 as in development and showed ReactP5Wrapper (v4) as the primary component in all examples. Since v5 is now released (5.0.2), the documentation needed to be brought up to date.

Proposed Changes

• Remove the outdated "v5 is still in development" warning
• Convert migration notes into a collapsible section with a link to the v4.4.1 documentation
• Update React website link from reactjs.org to react.dev
• Update peer dependencies section to show only v5 requirements
• Replace all ReactP5Wrapper references with P5Canvas in code examples
• Remove all duplicate "Version 5" collapsible detail sections
• Clean up Error and Loading UIs section language

How Has This Been Tested?

• Unit Tests
• Integration Tests
• Manual Testing (please describe)

Reviewed the rendered README to ensure all examples use P5Canvas, no stale ReactP5Wrapper references remain (except in the migration guide), and all links are correct.

Screenshots/Recordings

N/A

Breaking Changes

• Yes (please describe)
• No

Checklist

• My code follows the code style of this project
• I have updated the documentation accordingly
• I have added tests to cover my changes
• All new and existing tests passed
• My changes generate no new warnings

Additional Notes

N/A

[yevdyko]

@jamesrweb The issue with the linter has been resolved in #554 and will be gone after its merge

[jamesrweb]

@jamesrweb The issue with the linter has been resolved in #554 and will be gone after its merge

Merged it now, try rerunning the linter job 👌🏻

[github-actions]

Coverage report for commit: b8e7a64
File: ./coverage/clover.xml

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      └─────────────────────────┘
 *Legend:* █ = Current Distribution 

Summary - Lines: 100.00% | Methods: 100.00% | Branches: 100.00%

Files	Lines	Methods	Branches
src/components
P5Canvas.tsx	100.00%	100.00%	100.00%
P5CanvasGuard.tsx	100.00%	100.00%	100.00%
P5CanvasWithSketch.tsx	100.00%	100.00%	100.00%
src/constants
CanvasContainerClassName.ts	100.00%	100.00%	100.00%
src/contracts
CanvasContainer.ts	100.00%	100.00%	100.00%
CanvasContainerRef.ts	100.00%	100.00%	100.00%
InputProps.ts	100.00%	100.00%	100.00%
P5CanvasInstance.ts	100.00%	100.00%	100.00%
P5CanvasInstanceRef.ts	100.00%	100.00%	100.00%
P5CanvasProps.ts	100.00%	100.00%	100.00%
P5CanvasPropsWithSketch.ts	100.00%	100.00%	100.00%
Sketch.ts	100.00%	100.00%	100.00%
SketchProps.ts	100.00%	100.00%	100.00%
WithChildren.ts	100.00%	100.00%	100.00%
p5.ts	100.00%	100.00%	100.00%
src
main.tsx	100.00%	100.00%	100.00%
src/utils
createP5CanvasInstance.ts	100.00%	100.00%	100.00%
logErrorBoundaryError.ts	100.00%	100.00%	100.00%
propsAreEqual.ts	100.00%	100.00%	100.00%
removeP5CanvasInstance.ts	100.00%	100.00%	100.00%
updateP5CanvasInstance.ts	100.00%	100.00%	100.00%
withoutKeys.ts	100.00%	100.00%	100.00%

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