refactor: change language_error.rs to language.rs

Author: reddevilmidzy

src/errors/language_error.rs src/errors/language.rssrc/errors/language_error.rs renamed to src/errors/language.rs

@@ -1,3 +1,3 @@
-mod language_error;
+mod language;
 
-pub(crate) use language_error::*;
+pub(crate) use language::*;