Fix sending no-sound videos in media group & sending media as videos by default in `send_video`

[Danipulok]

Requirements: we have video without sound named 'test.mp4'.

Without this PR, the following code fails:

async with client:
    media = [
        types.InputMediaVideo(media="test.mp4"),
        types.InputMediaVideo(media="test.mp4"),
    ]
    await client.send_media_group(chat_id="me", media=media)

with error:

Traceback (most recent call last):
  File "D:\Code\Personal\pyrogram\check.py", line 49, in <module>
    loop.run_until_complete(main())
  File "C:\Program Files\Python310\lib\asyncio\base_events.py", line 649, in run_until_complete
    return future.result()
  File "D:\Code\Personal\pyrogram\check.py", line 36, in main
    await client.send_media_group(
  File "D:\Code\Personal\pyrogram\src\pyrogram\methods\messages\send_media_group.py", line 455, in send_media_group
    r = await self.invoke(
  File "D:\Code\Personal\pyrogram\src\pyrogram\methods\advanced\invoke.py", line 94, in invoke
    r = await session.invoke(
  File "D:\Code\Personal\pyrogram\src\pyrogram\session\session.py", line 401, in invoke
    return await self.send(query, timeout=timeout)
  File "D:\Code\Personal\pyrogram\src\pyrogram\session\session.py", line 369, in send
    RPCError.raise_it(result, type(data))
  File "D:\Code\Personal\pyrogram\src\pyrogram\errors\rpc_error.py", line 91, in raise_it
    raise getattr(
pyrogram.errors.exceptions.bad_request_400.MediaEmpty: Telegram says: [400 MEDIA_EMPTY] - The media you tried to send is invalid (caused by "messages.SendMultiMedia")

Because GIF media (actually called 'animated') can not be sent in media group. This PR changes it, so all valid files in media groups actually can be sent.

I also changed default no_sound for send_video, because currently it sends no-sound videos as GIFs, which is not expected.