Specify $HOME as working directory through the .desktop file

This is just a workaround for the problem of opening "~/Documents" on startup.
Although it is simple (just one line) and easy to understand, it is still a
not-so-pleasant hack which doesn't need to be added at the first place.

Note, the per-profile working directory still takes precedence if it is set

CCBUG: 302903

desktop/konsole.desktop

@@ -4,6 +4,7 @@ Exec=konsole
 TryExec=konsole
 Icon=utilities-terminal
 Terminal=false
+Path=$HOME
 Categories=Qt;KDE;System;TerminalEmulator;
 X-DocPath=konsole/index.html
 X-KDE-StartupNotify=true