Squashed commit of the following:

commit 2f7d77e
Merge: 5bf3fb8 e4f26a7
Author: Emiel Steerneman <[email protected]>
Date:   Mon Jul 31 22:17:21 2023 +0200

    Merge pull request #89 from RoboTeamTwente/update/headless-mode

    Make sure that robots drive without GUI

commit e4f26a7
Author: emiel steerneman <[email protected]>
Date:   Mon Jul 31 00:06:14 2023 +0200

    Make sure that robots drive without GUI

roboteam_ai/src/interface/api/Output.cpp

@@ -9,11 +9,11 @@
 namespace rtt::ai::interface {
 
 // these values are default initialized here, but will be updated once mainWidget.cpp constructs the PID widget.
-pidVals Output::numTreePID = pidVals(0.0, 0.0, 0.0);
-pidVals Output::receivePID = pidVals(0.0, 0.0, 0.0);
-pidVals Output::interceptPID = pidVals(0.0, 0.0, 0.0);
-pidVals Output::keeperPID = pidVals(0.0, 0.0, 0.0);
-pidVals Output::keeperInterceptPID = pidVals(0.0, 0.0, 0.0);
+pidVals Output::numTreePID = Constants::standardNumTreePID();
+pidVals Output::receivePID = Constants::standardReceivePID();
+pidVals Output::interceptPID = Constants::standardInterceptPID();
+pidVals Output::keeperPID = Constants::standardKeeperPID();
+pidVals Output::keeperInterceptPID = Constants::standardKeeperInterceptPID();
 
 rtt::Vector2 Output::markerPosition = {0, 0};  // initialize on middle of the field
 bool Output::useRefereeCommands = false;