Fixed it simply not working >:(

translator.cpp

@@ -1,6 +1,7 @@
 #include <string>
 #include "translator.h"
 
+namespace translation {
     std::string translateInput(const std::string& input) {
         std::string translatedText{};
 
@@ -105,3 +106,4 @@ std::string translateInput(const std::string& input) {
         }
         return translatedText;
     }
+}