chore: Replace loop to list compreh

app.py

@@ -41,11 +41,9 @@ def predict(image_path):
     rotated_image, pred_data = PREDICTOR(image)
     structured_text = get_structured_text(pred_data, ['shrinked_text'])
 
-    result_text = ''
-    for page_text in structured_text:
-        for line_text in page_text:
-            result_text += ' '.join(line_text) + '\n'
-    return result_text
+    result_text = [' '.join(line_text) for page_text in structured_text
+                   for line_text in page_text]
+    return '\n'.join(result_text)
 
 
 PIPELINE_CONFIG_PATH = get_config_and_download_weights("sberbank-ai/ReadingPipeline-Peter")