Reduced logging

app/src/main/java/eu/faircode/email/DB.java

@@ -2481,13 +2481,13 @@ public abstract class DB extends RoomDatabase {
                     @Override
                     public void migrate(@NonNull SupportSQLiteDatabase db) {
                         logMigration(startVersion, endVersion);
-                        EntityMessage.convert(context);
+                        EntityMessage.convert(context, true);
                     }
                 }).addMigrations(new Migration(246, 247) {
                     @Override
                     public void migrate(@NonNull SupportSQLiteDatabase db) {
                         logMigration(startVersion, endVersion);
-                        EntityMessage.convert(context);
+                        EntityMessage.convert(context, false);
                     }
                 }).addMigrations(new Migration(998, 999) {
                     @Override

app/src/main/java/eu/faircode/email/EntityMessage.java

@@ -582,7 +582,7 @@ public class EntityMessage implements Serializable {
         return new File(dir, id.toString());
     }
 
-    static void convert(Context context) {
+    static void convert(Context context, boolean silent) {
         File root = new File(context.getFilesDir(), "messages");
         File[] files = root.listFiles();
         if (files == null)
@@ -595,7 +595,10 @@ public class EntityMessage implements Serializable {
                     Helper.copy(file, target);
                     file.delete();
                 } catch (Throwable ex) {
-                    Log.e(ex);
+                    if (silent)
+                        Log.i(ex);
+                    else
+                        Log.e(ex);
                 }
     }