added greek translations

[paligiannis]

Got some code for us? Awesome 🎊!

Please include a description of your change & check your PR against this list, thanks!

• [x] There's a clear use-case for this code change, explained below Just adding some Greek translations with the "el" folder

• [x] Commit message has a short title & references relevant issues

• [x] The build will pass (run yarn test:all and yarn lint)

We appreciate your contribution!

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🤖 Generated by Copilot at 7db4dc4

This pull request adds Greek translations for four files in the ghost/i18n/locales/el directory. These files contain the strings used for various features of Ghost, such as comments, email verification, portal, and signup form. The purpose of these translations is to enable these features to support the Greek language and provide a better user experience for Greek readers and members.

[royalfig]

Hi @paligiannis. Thanks for working on this! The translation is missing some terms that have been added. You'll need to add those missing terms before I can merge.

[github-actions[bot]]

Note from our bot: Some changes have been requested on this pull request. Updating your code is great, but won't notify us, so please leave a comment so that we (and our bot) can see when you've made the changes. Thank you 🙏