fix: Fix combobox's width for API executor

When changing files with the API executor displayed, the combobox didn't
adapt to its content.

Fix #164

src/gui/apiexecutorwidget.cpp

@@ -39,6 +39,7 @@ APIExecutorWidget::APIExecutorWidget(QWidget *parent)
 {
 
     ui->setupUi(this);
+    ui->apiComboBox->setSizeAdjustPolicy(QComboBox::AdjustToContents);
     setProperty("panelWidget", true);
 
     initializeApi();