Try to avoid window resize on file open

[ottob]

System and IINA version:

• macOS 12.2
• IINA v1.2.0-32

Expected behavior:
File is opened with the correct window size.

Actual behavior:
IINA opens with a too large (or small, depending on the file resolution) window and then has to resize the window (with an animation). This looks janky compared to Quicktime that opens with the correct size at once, and it also takes longer until the video is started.

slow motion capture of qt: https://www.mediafire.com/file/dx7ryv8q64hagbf/qt.mov/file
slow motion capture of iina: https://www.mediafire.com/file/02czgw7mbsmoe6y/iina.MOV/file

Steps to reproduce:
Open video file.
My settings:

• MPV does not have this problem.
• Official IINA does not have this problem.

How often does this happen?
Always