wiki: auto-sync from KnevS/Tesla-Carview@5cacfabac9e5d0d0e5eb81671f490883e68b665b
docs(EL): add First-Login page and complete Features for Greek locale - Create EL-First-Login.md: full Greek translation of the first-login guide incl. 16-step admin wizard table, tenant explainer, MFA setup, Tesla browser tip, invite flow - EL-Features.md: add missing dynamic tariff section (aWATTar/Tibber) - _Sidebar.md: replace EL placeholder with proper First-Login + Features links - EL-Home.md: update language note to reflect available EL sub-pages