fix(instructions): RemoveSinkInput stay on selection

commit edef922902
Author: 409 <bloecker.s@gmail.com>
Date:   Mon Jul 1 13:22:02 2024 +0200

    feat: automatically select new sink input if the current selection is
    none

src/mixer.rs

@@ -262,7 +262,7 @@ impl Mixer {
 
                         if self.sink_inputs.remove(&sink_index).is_some() {
                             if sink_index == current_key
-                                || removed_sink_input_index <= selected_index
+                                || removed_sink_input_index < selected_index
                             {
                                 self.select_previous();
                             }