fix: 修复textline_merge中detect_size属性名错误

Author: hgmzhn

manga_translator/manga_translator.py

@@ -1273,7 +1273,7 @@ async def _run_textline_merge(self, config: Config, ctx: Context):
                 h, w = w, h
 
             asp_ratio = h / w
-            tgt_size = config.detector.detect_size
+            tgt_size = config.detector.detection_size
             down_scale_ratio = h / tgt_size
             require_rearrange = down_scale_ratio > 2.5 and asp_ratio > 3