add new block dialog to scheduler

layout.html

@@ -810,6 +810,7 @@
 
 								// add event handlers
 								const block_cells = document.querySelectorAll(".schedule_grid_program_cell");
+								console.dir(block_cells);
 								block_cells.forEach((cell) => {
 									cell.addEventListener("click", schedule_grid_click_handler);
 								});