Upgrade example app to RN80 + fix RN80 codegen.

[iBotPeaches]

SketchCanvasNativeComponent.ts:2 Deep imports from the 'react-native' package are deprecated ('react-native/Libraries/Utilities/codegenNativeComponent'). Source: eact-native-sketch-canvas/src/specs/SketchCanvasNativeComponent.ts 2:0
SketchCanvasNativeComponent.ts:3 Deep imports from the 'react-native' package are deprecated ('react-native/Libraries/Utilities/codegenNativeCommands'). Source:react-native-sketch-canvas/src/specs/SketchCanvasNativeComponent.ts 3:0 

2 new warnings.

• Android tested
• iOS tested

fixes: #99

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Screen.Recording.2025-06-25.at.7.38.06.AM.mov