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

TactilityHeadless/Source/Services/Wifi/WifiEsp.cpp

@@ -745,7 +745,7 @@ static void service_stop(Service& service) {
 }
 
 extern const ServiceManifest manifest = {
-    .id = "wifi",
+    .id = "Wifi",
     .on_start = &service_start,
     .on_stop = &service_stop
 };

TactilityHeadless/Source/Services/Wifi/WifiMock.cpp

@@ -177,7 +177,7 @@ static void service_stop(TT_UNUSED Service& service) {
 }
 
 extern const ServiceManifest manifest = {
-    .id = "wifi",
+    .id = "Wifi",
     .on_start = &service_start,
     .on_stop = &service_stop
 };