Add todo comment for android 10+

app/src/main/AndroidManifest.xml

@@ -8,6 +8,7 @@
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 
     <application
+        android:requestLegacyExternalStorage="true"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"

app/src/main/java/org/timecrafters/TimeCraftersConfigurationTool/backend/TAC.java

@@ -5,6 +5,7 @@ import android.os.Environment;
 import java.io.File;
 
 public class TAC {
+    // TODO: Update filesystem handling
     public static final String ROOT_PATH = Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + "TimeCrafters_Configuration_Tool",
                                CONFIGS_PATH = ROOT_PATH + File.separator + "/configs",
                                SETTINGS_PATH = ROOT_PATH + File.separator + "settings.json";