fix: fix typo in .env.example file

[feapolina]

Describe your changes

There was a missing "=" in the enviroment variable file .env.example right after the NEXT_PUBLIC_SUPABASE_ANON_KEY, which could cause a error while developing.

Issue ticket number and link

PLO-65

194

Checklist before requesting a review

• [x] I have performed a self-review of my code
• [ ] If it's an essential feature, I've tested it thoroughly.
• [ ] Do we need to implement analytics?
• [ ] Will this be part of a product update? If yes, please write one phrase about this update.

[vercel[bot]]

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[vmnog]

Thanks for contributing