Fixed remote redirect URL for federation shared files

[hopleus]

Summary

Fixed remote redirect URL for federation shared files

Use case:

After the file has been shared through the federation, it cannot be opened because the redirect URL is incorrect.

Example of a redirect URL:
it was:
https://domain.comindex.php/apps/officeonline/remote?shareToken =...
It became:
https://domain.com/apps/officeonline/remote?shareToken =...

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Documentation (manuals or wiki) has been updated or is not required

[hopleus]

@blizzz Hi. Could you run the tests?

[blizzz]

@blizzz Hi. Could you run the tests?

Hi @hopleus, thanks for your contribution! I left a review, will approve when it is addressed :)

[github-actions]

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