feat: add folder icons for about shopify and sections

[ilan8201]

Description

• Added custom folder icons for shopify, and sections folders.
• Ensured icons align with the Material Icon Theme design guidelines.

Contribution Guidelines

• By creating this pull request, I acknowledge that I have read the Contribution Guidelines for this project
• I have read the Code Of Conduct and promise to abide by these rules

[github-actions]

Preview

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[lucas-labs]

Hi, thanks for the PR! 😁

There are some visibility issues; especially in light themes:

That's why this icon theme never makes use of #ffffff or #000000

You can find more info in the contribution guidelines.

Cheers!