Functionality for new bioinfo QC worksheet

Almost forgot about this piece of code... It will move flowcells that are finished or cancelled from ongoing sheet to the finished sheet

Will only work with the new WIP revision of the worksheet
Yes it does @remiolsen , when we give an offset to "get_cell_content" it just set that value for row_start while proceeding within the function. So that is why while appending we should sum the offset i.e. `delete_ongoing.append(FINISHED_HEADER_OFFSET + idx)` so I believe it shouldn't miss it.