File Explorer: Do not highlight folders on single click

[ce-bo]

As a user, I want clicking on files and folders behave intuitively, so I can better navigate on the map.

• [ ] When a click opens a folder, select on the map
• [ ] When a click closes a folder, deselect on the map
• [ ] Highlight selected file/folder on the file tree
• [ ] When a selected file is clicked, deselect it on the map
• [ ] When a file is clicked, select it on the map

[ChristianHuehn]

We will do it like this:

• When click
• • opens folder -> SELECT
• • closes folder -> DESELECT