Autostart option (#2079)

* Autostart app on boot
* Settings page
* ext app support

firmware/application/ui_navigation.cpp

@@ -107,6 +107,10 @@
 #include "file_reader.hpp"
 #include "png_writer.hpp"
 #include "file_path.hpp"
+#include "ff.h"
+
+#include <locale>
+#include <codecvt>
 
 using portapack::receiver_model;
 using portapack::transmitter_model;
@@ -708,6 +712,23 @@ bool NavigationView::set_on_pop(std::function<void()> on_pop) {
     return true;
 }
 
+void NavigationView::handle_autostart() {
+    std::string autostart_app{""};
+    SettingsStore nav_setting{
+        "nav"sv,
+        {{"autostart_app"sv, &autostart_app}}};
+    if (!autostart_app.empty()) {
+        if (StartAppByName(autostart_app.c_str())) return;
+        // if returned false, check for external apps by that name, and try to start it
+        std::string appwithpath = "/" + apps_dir.string() + "/";
+        appwithpath += autostart_app;
+        appwithpath += ".ppma";
+        std::wstring_convert<std::codecvt_utf8_utf16<char16_t>, char16_t> conv;
+        std::filesystem::path pth = conv.from_bytes(appwithpath.c_str());
+        ui::ExternalItemsMenuLoader::run_external_app(*this, pth);
+    }
+}
+
 /* Helpers  **************************************************************/
 
 static void add_apps(NavigationView& nav, BtnGridView& grid, app_location_t loc) {