move config file to config directory

src/config.cpp

@@ -8,20 +8,10 @@
 
 Config::Config() {
   const auto home_path = filesystem::get_home_path();
-  if(std::getenv("XDG_RUNTIME_DIR") != nullptr) {
-    if(auto ptr = std::getenv("XDG_CONFIG_HOME")) {
-      boost::filesystem::path config_dir(ptr);
-      home_juci_path = config_dir / "juci";
-    }
-    else {
-      home_juci_path = home_path / ".config" / "juci";
-    }
-    juci_config_file = home_juci_path / "config.json";
-    return;
-  }
   if(home_path.empty())
     throw std::runtime_error("Could not find home path");
-  home_juci_path = home_path / ".juci";
+
+  home_juci_path = filesystem::get_config_path() / "juci";
   juci_config_file = home_juci_path / "config.json";
 }