(fix) language codes in translations for tos acceptance strings

Description

• Add correct language to ToS acceptance link
• Also make these links https

Screenshots

Technical details

Tests

All 5 languages in the dropdown should load correct language of ToS link ✅

All 5 languages in the dropdown should load https ToS link ✅

Issues

• Fix https://gitlab.e.foundation/e/infra/backlog/-/issues/4557+

10 commandments of code review

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