[*] refactor video editor

Author: heng30

wayshot/src/logic/video_editor/segment.rs

@@ -1203,6 +1203,12 @@ fn video_editor_segment_merge(ui: &AppWindow) {
         Ok(execute_result) => {
             sync_manager_to_ui(ui);
             refresh_affected_segments(ui, execute_result.affected_segments);
+
+            store_video_editor_selected_segments_index!(ui).set_vec(vec![]);
+            global_ve_filter!(ui).set_selected_filter_index(-1);
+            global_store!(ui).set_video_editor_segment_filter_flag(
+                !global_store!(ui).get_video_editor_segment_filter_flag(),
+            );
             crate::toast_success!(ui, "Segments merged");
         }
         Err(e) => crate::toast_warn!(ui, format!("Failed to merge segments: {}", e)),