Fix overflow issue for the Generate msg dropdown (#4195)

Author: PavelLaptev

app/src/lib/commit/CommitMessageInput.svelte

@@ -222,7 +222,6 @@
 		padding: 0 0 48px;
 		flex-direction: column;
 		gap: 4px;
-		overflow: hidden;
 		animation: expand-box 0.2s ease forwards;
 		/* props to animate on mount */
 		max-height: 40px;