Fix audio speed reset on song change

[BlobCodes]

The fix was taken from #44 (comment).

I applied the change and built the app using gnome builder, where everything worked perfectly.

[vixalien]

Thank you. The final step is to add your name for credit.

Please rebase and then add your name here:

decibels/src/application.ts

Lines 42 to 44 in b5fa774

	aboutWindow.set_developers([
	"Angelo Verlain https://vixalien.com",
	]);

[BlobCodes]

Thank you. The final step is to add your name for credit.

I rebased the branch and added the name.
(Even though I didn't really do anything, just copied the fix from you)

[vixalien]

Thank you very much!!!