Added courier-package and customs-check icons

[irvineacosta]

N/A

What is the purpose of this pull request?

• [x] New Icon
• [ ] Bug fix
• [ ] New Feature
• [ ] Documentation update
• [ ] Other:

Description

This pull request adds two new icons:

• courier-package: Represents delivery or courier services.
• customs-check: Represents customs inspections or border checks.

Icon use case

• courier-package:
  • Used on e-commerce platforms for delivery-related actions, such as shipping notifications or order tracking.
  • Representing courier services or logistics in delivery-related applications.
• customs-check:
  • Indicating customs inspection processes in travel-related or logistics applications.
  • Used in airport systems, border control apps, or any platform related to international trade and travel.

Alternative icon designs

N/A – these designs were chosen based on simplicity and adherence to Lucide’s design principles.

Icon Design Checklist

Concept

• [x] I have provided valid use cases for each icon.
• [x] I have not added any brand or logo icon.
• [x] I have not used any hate symbols.
• [x] I have not included any religious or political imagery.

Author, credits & license

• [x] The icons are solely my own creation.
• [ ] The icons were originally created in #<issueNumber> by @<githubUser>
• [ ] I've based them on the following Lucide icons:
• [ ] I've based them on the following design:

Naming

• [x] I've read and followed the naming conventions.
• [x] I've named icons by what they are rather than their use case.
• [x] I've provided meta JSON files in icons/[iconName].json.

Design

• [x] I've read and followed the icon design guidelines.
• [x] I've made sure that the icons look sharp on low DPI displays.
• [x] I've made sure that the icons look consistent with the icon set in size, optical volume, and density.
• [x] I've made sure that the icons are visually centered.
• [x] I've correctly optimized all icons to three points of precision.

Before Submitting

• [x] I've read the Contribution Guidelines.
• [x] I've checked if there was an existing PR that solves the same issue.