Don't exclude default language from configuration parsing

For some reason the default language (namely EN) was ignored when reading
the configuration file. After discussion with anoe, it appears that
this exclusion happens for historical reasons, so this commit removes it.

src/Gargantext/Core/Config/Ini/NLP.hs

@@ -47,7 +47,7 @@ readConfig fp = do
 
   let m_nlp_default = parseURI $ cs $ val' lang_default_text
 
-  let m_nlp_keys = filter (\k -> k `notElem` [lang_default_text]) $ fromRight [] $ Ini.keys iniSection ini
+  let m_nlp_keys = fromRight [] $ Ini.keys iniSection ini
   let m_nlp_other = listToMaybeAll $ (\k -> (,) k <$> (parseURI $ cs $ val' k)) <$> m_nlp_keys
 
   let mRet = NLPConfig <$> m_nlp_default <*> (Map.fromList <$> m_nlp_other)