Bugfixes

- Added handling for DeepL exceptions
- Added debug logging for im- and exporting
- When executing the post script for the unique id migration, ensure
  that new id are generated, only when no id exists
- Fixed section export by loading references to parents

I18N Commander/DataModel/MigrationScripts/202211AddUniqueIds.cs

@@ -7,16 +7,28 @@ public static class Script202211AddUniqueIds
     public static async Task PostMigrationAsync(DataContext db)
     {
         await foreach (var setting in db.Settings)
-            setting.UniqueId = Guid.NewGuid();
-        
+        {
+            if(setting.UniqueId == Guid.Empty)
+                setting.UniqueId = Guid.NewGuid();
+        }
+
         await foreach(var section in db.Sections)
-            section.UniqueId = Guid.NewGuid();
-        
+        {
+            if(section.UniqueId == Guid.Empty)
+                section.UniqueId = Guid.NewGuid();
+        }
+
         await foreach (var textElement in db.TextElements)
-            textElement.UniqueId = Guid.NewGuid();
-        
+        {
+            if(textElement.UniqueId == Guid.Empty)
+                textElement.UniqueId = Guid.NewGuid();
+        }
+
         await foreach (var translation in db.Translations)
-            translation.UniqueId = Guid.NewGuid();
+        {
+            if(translation.UniqueId == Guid.Empty)
+                translation.UniqueId = Guid.NewGuid();
+        }
 
         await db.SaveChangesAsync();
     }