Other issues (note for self)

[LunarMarathon]

• heading -> center (thought it was already done sometime back)
• scroll down btn
• add btn (just adding nodes w/o display) instead of generate btn (functions like display)
• edit and del changes appear only on clicking generate btn after edit/del and gen requires i/p each time (alert for add, remove alert for generate)
• change the name from generate to display if needed after all changes
• preview of table to be imported (add a diff btn), option to append existing table/overwriting existing table(/add new rows only?)
• gen needs to be clicked to show changes after min, max nodes sort too