[Misdetection] HEIF Image file misdetected as MP4 media file

HEIF image incorrectly identified as mp4 video file.

```shell
└──❯ file sample1.heic
sample1.heic: ISO Media, HEIF Image
└──❯ magika sample1.heic
sample1.heic: MP4 media file (video)
└──❯ magika --version
magika 1.1.0 standard_v3_3
```

[sample1.heic.zip](https://github.com/user-attachments/files/31562482/sample1.heic.zip)

**Additional context**

Start by reproducing the report with the attached sample1.heic using magika 1.1.0 and compare its result with the file command output. Trace the detection path for HEIF and MP4 media files; done means the HEIF sample is no longer reported as an MP4 video file.

Written by the indexing model from the issue text.