Sort apps on Desktop and Settings (#87)

- Sort apps by name
- Make manifest IDs consistent
- Updated screenshots
- Renamed Screenshot app so it always renders at the bottom of the app list

Tactility/Source/Apps/Display/Display.cpp

@@ -121,7 +121,7 @@ static void app_hide(TT_UNUSED App app) {
 }
 
 extern const AppManifest manifest = {
-    .id = "display",
+    .id = "Display",
     .name = "Display",
     .icon = TT_ASSETS_APP_ICON_DISPLAY_SETTINGS,
     .type = AppTypeSettings,