App settings revamp (#1139)

* WIP AppSetting overhaul

* WIP migrating apps to new settings.

* remove settings, rename tuned => target

* formatting

* Minor fixes

* Fix hang on app load

* run formatter

* PR comment fixes

* Load modulation into receiver model in app_settings

* Run formatter

---------

Co-authored-by: kallanreed <kallanreed@outlook.com>

firmware/application/apps/ui_spectrum_painter.hpp

@@ -29,6 +29,7 @@
 #include "capture_app.hpp"
 #include "baseband_api.hpp"
 
+#include "app_settings.hpp"
 #include "portapack.hpp"
 #include "message.hpp"
 
@@ -53,11 +54,10 @@ class SpectrumPainterView : public View {
     std::string title() const override { return "Spec.Painter"; };
 
    private:
-    void on_target_frequency_changed(rf::Frequency f);
-    void set_target_frequency(const rf::Frequency new_value);
-    rf::Frequency target_frequency() const;
-
     NavigationView& nav_;
+    app_settings::SettingsManager settings_{
+        "tx_painter", app_settings::Mode::TX};
+
     bool image_input_avaliable{false};
     bool tx_active{false};
     uint32_t tx_mode{0};