Add numpy.fft.fftn frontend

[RohitSgh]

Close #17028

[RohitSgh]

Hi @sherry30. Can you please help me why checks are failing?

[RohitSgh]

Please check again @sherry30

Can more details be provided on what exactly intelligent-tests-pr / run_tests (1) (pull_request) and intelligent-tests-pr / run_tests (24) (pull_request) are?

[RohitSgh]

Also, my issue is not being added to list https://github.com/unifyai/ivy/issues/1532. Have tried both way #17028 and - [ ] #17028

[sherry30]

Also, my issue is not being added to list #1532. Have tried both way #17028 and - [ ] #17028

I've added your issue manually in the list

[RohitSgh]

Frontend Task Checklist

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     1. • [ ] ❌: It is being declared as such by setting fun1 = fun2, rather than being re-implemented from scratch.
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          • [ ] ❌: A ToDo comment has been made prompting to remove the decorator and update the implementation as soon as the missing function has been added.
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[RohitSgh]

Please review @sherry30. Only 1 failing check now intelligent-tests-pr / run_tests (24) (pull_request)

[RohitSgh]

Please review @sherry30. Only 1 failing check now intelligent-tests-pr / run_tests (24) (pull_request)

Now, also 1 failing, but is has changed to intelligent-tests-pr / run_tests (1) (pull_request), @sherry30

[ivy-seed]

This PR has been labelled as stale because it has been inactive for more than 7 days. If you would like to continue working on this PR, then please add another comment or this PR will be closed in 7 days.

[RohitSgh]

Working @ivy-seed