Double-clicking a file in the filesystem panel, "opening" it in a tab, should set the focus to the newly opened file. Instead, the filesystem panel keeps the input focus.

Steps to reproduce:

- open a file from the filesystem panel

- type something

Expected:

Text should appear in the file tab

Observed:

Input is handled by the filesystem panel

It's small quality of life things like this that in sum make kdevelop far less enjoyable than it could be.