Tutorials linking to broken routes

[samajammin]

Describe the bug

Seems we're appending language routes incorrectly on some tutorials

To reproduce

1. Go to https://ethereum.org/en/developers/tutorials/
2. Filter by 'UI'
3. View results - same tutorial listed multiple times, some linking to pages that don't exist (e.g. https://ethereum.org/en/id/developers/tutorials/nft-minter/)

Expected behavior

Should show results only for pages that exist 😄 - should display tutorials of the current language (in this case, only /en/ routes).

Screenshots

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Additional context

No response

[minhoryang]

I'll handle this.