commit d852436

Fix rare panic on scrolling horizontal channels on small terminals

Fixes: https://todo.sr.ht/~delthas/senpai/161

 1@@ -275,6 +275,9 @@ func (ui *UI) ScrollChannelUpBy(n int) {
 2 
 3 func (ui *UI) ScrollChannelDownBy(n int) {
 4 	ui.channelOffset += n
 5+	if ui.channelOffset > len(ui.bs.list) {
 6+		ui.channelOffset = len(ui.bs.list)
 7+	}
 8 }
 9 
10 func (ui *UI) HorizontalBufferOffset(x int) int {