DisplayApp: use std::ranges function where possible

Instead of raw for loops use `std::ranges::transform` where possible.
And also use `std::ranges::find_if` instead of `std::find_if`.

Author: NeroBurner

src/displayapp/DisplayApp.cpp

@@ -54,6 +54,8 @@
 #include "libs/lv_conf.h"
 #include "UserApps.h"
 
+#include <algorithm>
+
 using namespace Pinetime::Applications;
 using namespace Pinetime::Applications::Display;
 
@@ -516,10 +518,9 @@ void DisplayApp::LoadScreen(Apps app, DisplayApp::FullRefreshDirections directio
   switch (app) {
     case Apps::Launcher: {
       std::array<Screens::Tile::Applications, UserAppTypes::Count> apps;
-      int i = 0;
-      for (const auto& userApp : userApps) {
-        apps[i++] = Screens::Tile::Applications {userApp.icon, userApp.app, true};
-      }
+      std::ranges::transform(userApps, apps.begin(), [](const auto& userApp) {
+        return Screens::Tile::Applications {userApp.icon, userApp.app, true};
+      });
       currentScreen = std::make_unique<Screens::ApplicationList>(this,
                                                                  settingsController,
                                                                  batteryController,
@@ -530,13 +531,12 @@ void DisplayApp::LoadScreen(Apps app, DisplayApp::FullRefreshDirections directio
                                                                  std::move(apps));
     } break;
     case Apps::Clock: {
-      const auto* watchFace =
-        std::find_if(userWatchFaces.begin(), userWatchFaces.end(), [this](const WatchFaceDescription& watchfaceDescription) {
-          return watchfaceDescription.watchFace == settingsController.GetWatchFace();
-        });
-      if (watchFace != userWatchFaces.end())
+      const auto* watchFace = std::ranges::find_if(userWatchFaces, [this](const WatchFaceDescription& watchfaceDescription) {
+        return watchfaceDescription.watchFace == settingsController.GetWatchFace();
+      });
+      if (watchFace != userWatchFaces.end()) {
         currentScreen.reset(watchFace->create(controllers));
-      else {
+      } else {
         currentScreen.reset(userWatchFaces[0].create(controllers));
       }
       settingsController.SetAppMenu(0);
@@ -587,11 +587,11 @@ void DisplayApp::LoadScreen(Apps app, DisplayApp::FullRefreshDirections directio
       break;
     case Apps::SettingWatchFace: {
       std::array<Screens::SettingWatchFace::Item, UserWatchFaceTypes::Count> items;
-      int i = 0;
-      for (const auto& userWatchFace : userWatchFaces) {
-        items[i++] =
-          Screens::SettingWatchFace::Item {userWatchFace.name, userWatchFace.watchFace, userWatchFace.isAvailable(controllers.filesystem)};
-      }
+      std::ranges::transform(userWatchFaces, items.begin(), [this](const WatchFaceDescription& userWatchFace) {
+        return Screens::SettingWatchFace::Item {userWatchFace.name,
+                                                userWatchFace.watchFace,
+                                                userWatchFace.isAvailable(controllers.filesystem)};
+      });
       currentScreen = std::make_unique<Screens::SettingWatchFace>(this, std::move(items), settingsController, filesystem);
     } break;
     case Apps::SettingTimeFormat:
@@ -639,7 +639,7 @@ void DisplayApp::LoadScreen(Apps app, DisplayApp::FullRefreshDirections directio
       currentScreen = std::make_unique<Screens::FlashLight>(*systemTask, brightnessController);
       break;
     default: {
-      const auto* d = std::find_if(userApps.begin(), userApps.end(), [app](const AppDescription& appDescription) {
+      const auto* d = std::ranges::find_if(userApps, [app](const AppDescription& appDescription) {
         return appDescription.app == app;
       });
       if (d != userApps.end()) {