Icon size appears too large compared to macOS system icons

### Describe the bug

The icon size in the current version of the app is noticeably larger compared to the standard icon sizes in recent versions of macOS. This causes the icon to appear oversized and out of place within the system’s user interface.

### Steps to reproduce

1. The app in Launchpad or Dock on macOS.
2. Observe that the app icon appears noticeably larger compared to other system or application icons.

### Expected behaviour

The icon should align with the standard icon size found in macOS applications to maintain a consistent and aesthetically pleasing appearance. **May I submit a pull request (PR)** to replace the current icon with one provided in [Issue #198 ](https://github.com/dwarvesf/hidden/issues/198#issuecomment-1140706628), which better matches the icon style and size in modern macOS versions.

**Screenshots**

No screenshots are necessary, as the size difference is visually evident when comparing to standard system icons.

### Environment

**Desktop:**
- OS: macOS
- Version: Sonoma 14.5

### Logs / Stack trace

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No logs or stack traces needed for this issue.
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