Download not always added to download manager

[fm-sys]

Checklist

• [X] I have searched the existing issues for my problem. This is a new ticket, NOT a duplicate or related to another open issue.
• [X] I have updated "Snapdrop for Android" to the latest version. The bug is reproducible on this latest version.
• [X] I have checked, that this is NOT a general Snapdrop bug. It is only related to the Android app, and not reproducible with the website as well.

App version

v1. 11.0

Android version

Android 7, and below

Describe the bug

The bug is depending on specific API levels:

Sometimes, stored files do not appear in the download manager.

Steps to reproduce the bug

Device specific

Stacktrace

No response

Screenshots and additional context

This can probably be solved by using the relevant method in download manager:

DownloadManager#addCompletedDownload(String title, String description, boolean isMediaScannerScannable, String mimeType, String path, long length, boolean showNotification)