Make Order Invoice similar to EventBrite

[mrsaicharan1]

Describe the bug
Parent Issue:
#5878

Expected behavior
The current order invoice needs to be generated as a proper PDF with the details specified here:
#5886 (comment)

While calculating the tax, the percentage and the amount must be shown

Additional context
Will work on this as soon as https://github.com/fossasia/open-event-server/pulls/5886 is merged.