fix cursor padding for mouse click

src/app.rs

@@ -224,6 +224,7 @@ impl App {
 						byte_column
 					);
 					current_buffer.cursors.clear();
+					current_buffer.clamp_screen_to_primary_cursor(self.window_size);
 				}
 			},
 			MouseEventKind::ScrollDown => {

src/main.rs

@@ -33,7 +33,7 @@ const LINES_OF_PADDING: usize = 5;
 const BYTES_OF_PADDING: usize = LINES_OF_PADDING * BYTES_PER_LINE;
 
 // TODO:
-// - update showcase
+// - click and drag selection
 // - `go` goto entered offset
 // - search
 //   - `/` hex, `A-/` ascii