Made register inspection window a child - it will now close when it's parent is deleted, as it should

src/Insight/UserInterfaces/InsightWindow/Widgets/TargetRegistersPane/RegisterWidget.cpp

@@ -102,7 +102,8 @@ void RegisterWidget::openInspectionWindow() {
             this->descriptor,
             this->insightWorker,
             this->targetState,
-            this->currentRegister.has_value() ? std::optional(this->currentRegister->value) : std::nullopt
+            this->currentRegister.has_value() ? std::optional(this->currentRegister->value) : std::nullopt,
+            this
         );
 
     } else {