add new video edit scripts for combine video and spliting video

package/database/database.py

@@ -214,7 +214,6 @@ class Repository:
     def get_youtube_info_all(self) -> list[YoutubeInfo]:
         return self.session.scalars(select(YoutubeInfo)).all()
 
-    def insert(self, data: TwitchVideo | Data | YoutubeInfo | Chapter):
     def insert(self, data: TwitchVideo | Data | YoutubeInfo | Chapter | list[YoutubeInfo] | list[Chapter]):
         """
         Handles insertion/updating for any of the defined models,