Drop dependency on qdbus for run-or-raise functionality

[voidpntr]

On my Arch system qdbus is not in PATH because I have only qt6-tools installed which puts qdbus in /usr/lib/qt6/bin/. qt5-tools would provide it in /usr/bin/ but I don't use any software that pulls it in.

For people with a similar setup ww does not work out of the box. This patch fixes it for the run-or-raise codepath.

I did not remove the last qdbus dependency in -ia mode because the output format would change from

activities: e95f6959-43e3-4e95-a42b-3ce622137856
caption: ww-run-raise : bash — Konsole
clientMachine: localhost
desktopFile: org.kde.konsole
desktops: 8530ccdc-c6aa-4c2f-a76f-9dcd890f89a6
fullscreen: false
...

to

method return time=1745072712.820071 sender=:1.13 -> destination=:1.188 serial=1168 reply_serial=2
   array [
      dict entry(
         string "activities"
         variant             array [
               string "e95f6959-43e3-4e95-a42b-3ce622137856"
            ]
      )
      dict entry(
         string "caption"
         variant             string "ww-run-raise : bash — Konsole"
      )
      dict entry(
         string "clientMachine"
         variant             string "localhost"
      )
      dict entry(
         string "desktopFile"
         variant             string "org.kde.konsole"
      )

Also,

• --session is the default for dbus-send, remove
• .run and .stop do not output anything for me, remove useless redirects