Add 13 language packs: PT, NL, DA, NO, SV, FI, HR, HU, SR, RO, SK, CS, EL

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/i18n.rs

@@ -12,6 +12,19 @@ const SOURCES: &[(&str, &str)] = &[
     ("es", include_str!("../lang/es.lang")),
     ("ru", include_str!("../lang/ru.lang")),
     ("it", include_str!("../lang/it.lang")),
+    ("pt", include_str!("../lang/pt.lang")),
+    ("nl", include_str!("../lang/nl.lang")),
+    ("da", include_str!("../lang/da.lang")),
+    ("no", include_str!("../lang/no.lang")),
+    ("sv", include_str!("../lang/sv.lang")),
+    ("fi", include_str!("../lang/fi.lang")),
+    ("hr", include_str!("../lang/hr.lang")),
+    ("hu", include_str!("../lang/hu.lang")),
+    ("sr", include_str!("../lang/sr.lang")),
+    ("ro", include_str!("../lang/ro.lang")),
+    ("sk", include_str!("../lang/sk.lang")),
+    ("cs", include_str!("../lang/cs.lang")),
+    ("el", include_str!("../lang/el.lang")),
 ];
 
 // order of the languages in the language dropdown