add rounding to image size

src/constructor.py

@@ -79,7 +79,7 @@ def generate_presentation(
             image_width, image_height = random.choice(
                 [(768, 1344), (1024, 1024)]
             )
-            image_width, image_height = image_size_coef * image_width, image_size_coef * image_height
+            image_width, image_height = round(image_size_coef * image_width), round(image_size_coef * image_height)
             caption_prompt = llm_generate_image_prompt(
                 llm_generate, 
                 description, 
@@ -104,7 +104,7 @@ def generate_presentation(
 
         if picture_path is None:
             # background_width, background_height = 1344, 768
-            background_width, background_height = image_size_coef * 1344, image_size_coef * 768
+            background_width, background_height = round(image_size_coef * 1344), round(image_size_coef * 768)
             background_prompt = llm_generate_background_prompt(
                 llm_generate, 
                 description,