StatusLabel: "Reset" -> "Clear"; Hide button when not needed

source/RobotAPI/libraries/skills_gui/StatusLabel.cpp

@@ -8,7 +8,7 @@ namespace armarx::skills::gui
     StatusLabel::StatusLabel()
     {
         this->label = new QLabel("");
-        this->resetButton = new QPushButton("Reset");
+        this->resetButton = new QPushButton("Clear");
         this->setupUi();
     }
 
@@ -16,12 +16,14 @@ namespace armarx::skills::gui
     StatusLabel::handleMessage(const std::string& message)
     {
         this->label->setText(QString::fromStdString(message));
+        this->resetButton->setHidden(false);
     }
 
     void
     StatusLabel::resetLabel()
     {
         this->label->setText(QString::fromStdString(""));
+        this->resetButton->setHidden(true);
     }
 
     void