DeepLX-JS support

What does this PR do?

This allows instance admins to use DeepLX as an alternative to DeepL for translations

There is already a doc MR from before the move:

Documentation!14 (merged)

Some Information can be found on the issue discussing alternative translation options:

#324 (closed)

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Additional Note i18n will be added to this after I am back from my break considering this code was already done before the move to GitLab and co.

I just felt like opening this MR already so people can look a it.

assigned to @Marie

changed the description

I still think that DeepLX-JS is a nasty hack, but this patch is small enough to accept (once that weirdness with the URL prefix gets explained)

added 1 commit

• 69f010fa - upd: remove `https`

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approved this merge request

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approved this merge request

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• 469c3f3f - upd: remove `https`

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added 1 commit

• 65a1bc21 - upd: add i18n

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merged

mentioned in commit d3d0e510