[Feature Request] add drag & drop support for Linux applications

[ke1v]

Describe the bug
Drag and drop for search results don't work on Linux. The search result is draggable but dropping doesn't paste anything. Dragging/dropping the search result icon pastes a link to the icon in Ueli's cache.

To Reproduce
Steps to reproduce the behavior:

1. Launch ueli on Linux
2. Enable Drag and Drop in Settings
3. Drag and drop any search result

Expected behavior
The search result should be pasted where dropped.

Environment

• OS: [Linux]
• Version [main]

[oliverschwendener]

@ke1v FYI I turned this into a feature request.