Issue 30288 small fixes - missing change (#31257)

### Proposed Changes
* The pull request #30289 added
several fixes to our source code. However, for some reason, this
particular change:
df53a41
did not make it.
* This PR brings that change back, as it's very important for our
Language Factory class to support an underscore or a dash in the
language ID.

dotCMS/src/main/java/com/dotmarketing/portlets/languagesmanager/business/LanguageFactoryImpl.java

@@ -135,7 +135,7 @@ protected Language getLanguage(final String languageId) {
 		}
 
 		// if we have a number
-		if(!languageId.contains("_")){
+		if(!languageId.contains("_") && !languageId.contains("-")) {
 			try {
 				final long parsedLangId = Long.parseLong(languageId);
 				return getLanguage(parsedLangId);