Doc: Reorder alphabetically lists of components

Description

Reorder alphabetically two lists of components in the documentation:

• site/content/docs/5.1/customize/overview.md
• site/content/docs/5.1/getting-started/introduction.md

Note: If this PR is merged, a similar PR could be created for v4-dev branch if necessary.

Motivation & Context

IMO it is easier for the user to find information in an alphabetical ordered list.

Types of changes

• Refactoring (non-breaking change)

Checklist

• I have read the contributing guidelines
• My code follows the code style of the project (using npm run lint)
• My change introduces changes to the documentation
• I have updated the documentation accordingly
• All new and existing tests passed

Related issues

N/A

Live previews

• Customize > Overview > CSPs and embedded SVGs
• Getting started > Introduction