Create config_utils.cpp

- Modularize the src and change the name of the function as it will load more variables from the config file

src/config_utils.cpp

@@ -0,0 +1,31 @@
+#include "config_utils.hpp"
+#include <iostream>
+#include <fstream>
+
+std::string ConfigLoad(const std::string& filename) {
+    std::ifstream configFile(filename);
+    if (!configFile) {
+        std::cerr << "Error opening the config file: " << filename << std::endl;
+        return "";
+    }
+
+    std::string line;
+    while (std::getline(configFile, line)) {
+        if (line.empty() || line[0] == '#') continue;
+
+        auto pos = line.find('=');
+        if (pos != std::string::npos) {
+            std::string key = line.substr(0, pos);
+            std::string value = line.substr(pos + 1);
+            key.erase(0, key.find_first_not_of(" \t"));
+            key.erase(key.find_last_not_of(" \t") + 1);
+            value.erase(0, value.find_first_not_of(" \t"));
+            value.erase(value.find_last_not_of(" \t") + 1);
+            if (key == "languageCode") {
+                return value;
+            }
+        }
+    }
+    std::cerr << "Error: 'languageCode' not found in the config file" << std::endl;
+    return "en"; // Default language
+}