docs: changed husky install to husky init for v9

[Marukome0743]

Description

Update local setup documentation to use husky init for v9 installations and retain husky install instructions for v8 or lower across npm, yarn, pnpm, and deno workflows.

Documentation:

• Add npx husky init, yarn husky init, pnpm husky init, and deno task --eval husky init commands for husky@v9 setup
• Annotate npx husky install, yarn husky install, pnpm husky install, and deno task --eval husky install as applicable to husky@v8 or lower

Motivation and Context

At #4356, husky init is replaced with husky install.
However, [email protected] introduced the husky init command.

This is now easier than ever.
It's just a single line that does the same as above.
No need to read the docs to get started anymore.

Usage examples

npx husky init

How Has This Been Tested?

I have tested on my local PC.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my changes.
• All new and existing tests passed.

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[escapedcat]

Awesome, thanks!