docs: suggest biome migrate commands after biome init

[Conaclos]

Summary

When biome init is executed the following message is printed:

❯ ./biome init

Welcome to Biome! Let's get you started...

Files created ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  - biome.json: Your project configuration. Documentation: https://biomejs.dev/reference/configuration

Next Steps ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━

  1. Setup an editor extension
     Get live errors as you type and format when you save. Learn more: https://biomejs.dev/guides/getting-started#editor-setup

  2. Try a command
     biome check verifies formatting and lint. Run biome --help for a full list of commands and options.

  3. Read the documentation
     Our website serves as a comprehensive source of guides and documentation: https://biomejs.dev

  4. Get involved in the community
     Ask questions, get support, or contribute by participating on GitHub (https://github.com/biomejs/biome),
     or join our community Discord (https://discord.gg/BypW39g6Yc)
❯ 

This PR:

• Add a new item Migrate from ESLint and Prettier
• Fix the hyperlink for the editor extension
• Rephrase and add newlines to avoid line wrapping on small screen or in dual windows mode
• Remove horizontal bars and inverse color: this looks cleaner and avoid line wrapping
• A blank line at the end

Here is the result:

❯ ./biome init

Welcome to Biome! Let's get you started...

Files created 

  - biome.json
    Your project configuration. See https://biomejs.dev/reference/configuration

Next Steps 

  1. Setup an editor extension
     Get live errors as you type and format when you save.
     Learn more at https://biomejs.dev/guides/integrate-in-editor/

  2. Try a command
     biome check  checks formatting, import sorting, and lint rules.
     biome --help displays the available commands.

  3. Migrate from ESLint and Prettier
     biome migrate eslint   migrates your ESLint configuration to Biome.
     biome migrate prettier migrates your Prettier configuration to Biome.

  4. Read the documentation
     Find guides and documentation at https://biomejs.dev/guides/getting-started/

  5. Get involved with the community
     Ask questions and contribute on GitHub: https://github.com/biomejs/biome
     Seek for help on Discord: https://discord.gg/BypW39g6Yc

❯ 

Test Plan

CI should pass. I manually tested the command.

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[ematipico]

We should have a resource (website page) that explains this better. A guide, maybe. Not a blocker but something we should prepare, I think.

[Conaclos]

Yeah, I was thinking the same thing.