1.3b (windows): microphone & transparent gif fix

a quick update! the windows version has been updated to 1.3b.

• most microphone issues that people were having should be gone now!
• transparent GIFs are now actually transparent; no more blinking colours.

as for the mac version, i'm still figuring out what's going on with the file opening bug, and i'm holding the 1.3b mac update until i figure it out.

as for the linux version, i'm too lazy to boot to linux rn but i'll see if i can build it later.

thanks for the patience! i know the microphone thing was a deal breaker for most people, so if you were one of those people, consider giving the app another try now :]