[fix #16193] allow minimization of left panel in option dialogs

Author: 3nids

src/gui/qgsoptionsdialogbase.cpp

@@ -216,6 +216,8 @@ void QgsOptionsDialogBase::restoreOptionsBaseUi( const QString& title )
 
 void QgsOptionsDialogBase::searchText( QString text )
 {
+  mSearchLineEdit->setMinimumWidth( text.isEmpty() ? 0 : 70 );
+
   if ( !mOptStackedWidget )
     return;