Add responsive icons for system theme selection (Smartphone, Tablet, Monitor) in ThemeToggle.vue; add an "Explore Communities" CTA to Home.vue that links to the localized communities page. Reduce the advertised sync update rate from ~100 to ~50 times per second across multiple locale files (en, de, es, it, ru). Also update the English freeroam label/description to "Freeroam & Custom Servers" with details about custom scripts/maps/mods. Note: fr.json contains unresolved merge conflict markers for the sync description and needs manual resolution.
