Add macro search functionality

Allows search by ...
* Macro name
* Segment type
* Segment label

lib/general.cpp

@@ -3,6 +3,7 @@
 #include "filter-combo-box.hpp"
 #include "layout-helpers.hpp"
 #include "macro.hpp"
+#include "macro-search.hpp"
 #include "macro-settings.hpp"
 #include "path-helpers.hpp"
 #include "selection-helpers.hpp"
@@ -1013,6 +1014,19 @@ void AdvSceneSwitcher::SetupGeneralTab()
 			switcher->CheckAutoStart();
 		});
 
+	ui->alwaysShowMacroSearch->setChecked(
+		GetMacroSearchSettings().showAlways);
+
+	connect(ui->alwaysShowMacroSearch, &QCheckBox::stateChanged, this,
+		[this](int enabled) {
+			GetMacroSearchSettings().showAlways = enabled;
+
+			if (loading) {
+				return;
+			}
+			CheckMacroSearchVisibility();
+		});
+
 	// Set up status control
 	auto statusControl = new StatusControl(this, true);
 	ui->statusLayout->addWidget(statusControl->StatusPrefixLabel(), 1, 0);