[ENG-213] Statically link ffmpeg on Windows

[spacedrive-bot]

Currently the ffmpeg ddl files must be in the same directory as the Spacedrive exe for it to work. _{Oscar Beaumont on Linear}

[spacedrive-bot]

For future reference: https://github.com/zmwangx/rust-ffmpeg-sys/pull/2 _{Oscar Beaumont on Linear}