Docs: Change `view in GitHub` links in `v4-dev`

Description

Changed every View on GitHub link management inside main branch.

Motivation & Context

Facilitate release process to avoid dead links.

Type 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
• I have added tests to cover my changes
• All new and existing tests passed

Live previews

• https://deploy-preview-37223--twbs-bootstrap.netlify.app/docs/4.6/getting-started/introduction/ (but anywhere in the docs).

Related issues

Fixes #36853 (closed). Related to #37214.