feat(icons): Add whistle icon

[timmy471]

Closes #2914

What is the purpose of this pull request?

• New Icon
• Bug fix
• New Feature
• Documentation update
• Other:

Description

This PR creates a new icon which references issue #2914

Icon use case

• Coach whistles
• Sports companies
• Traffic cops
• Lifeguards use whistles

Icon Design Checklist

Concept

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

Author, credits & license

• The icons are solely my own creation.
• The icons were originally created in Include Whistle Icon #2914 by @briz123 and contributed to by @UsamaKhan and @ajokt123
• I've based them on the following Lucide icons:
• I've based them on the following design:

Naming

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

Design

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

Before Submitting

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