Update document

[bluzky]

• Update post install message
• Update readme to explain the different between init modes.

Summary by Sourcery

Clarify initialization modes in the README and update the post-install message to reflect the selected mode.

Enhancements:

• Modify post-install message to provide specific instructions based on the initialization mode selected.

Documentation:

• Update README to clarify the differences between initialization modes and provide examples for using SaladUI components in a project.

[sourcery-ai]

Reviewer's Guide by Sourcery

This PR updates documentation and post-installation messages to better explain the different initialization modes of SaladUI and marks some components as completed. The changes primarily focus on clarifying the distinction between using SaladUI as a library versus as part of a project, and includes usage examples.

No diagrams generated as the changes look simple and do not need a visual representation.

File-Level Changes

Change	Details	Files
Enhanced documentation for initialization modes	Added explanation about using SaladUI as part of a project Added code example showing how to import and use components Added clarification about library usage	README.md
Updated component status in documentation	Changed Alert Dialog status from in-progress (🚧) to completed (✅) Changed Collapsible status from in-progress (🚧) to completed (✅)	README.md
Improved post-installation messages	Added conditional message based on initialization mode Updated message to explain component usage for library mode	lib/mix/tasks/salad.init.ex

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[sourcery-ai]

Hey @bluzky - I've reviewed your changes and they look great!

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟡 Documentation: 2 issues found

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[sourcery-ai]

issue (documentation): Grammar: 'need' should be 'needs'

[sourcery-ai]

suggestion (documentation): Add language specification to code block

Please specify the language as elixir for proper syntax highlighting