feat: switch text to UTF-8; add Unicode key events, dead keys & Czech layout; fix numpad navigation; add NumLock support

programs/src/desktop/apps/settings/about.cpp

@@ -44,7 +44,7 @@ void settings_draw_about(Canvas& c, SettingsState* st) {
     mtk::draw_separator(c, x, y, c.w - 2 * x, theme);
     y += 12;
 
-    c.text(x, y, "Copyright \xa9 2026 Montauk Operating System Project", theme.text_muted);
+    c.text(x, y, "Copyright \u00A9 2026 Montauk Operating System Project", theme.text_muted);
 }
 
 } // namespace settings_app