add Export()

Author: carlos-zamora

src/cascadia/TerminalSettingsModel/CascadiaSettings.h

@@ -75,6 +75,7 @@ namespace winrt::Microsoft::Terminal::Settings::Model::implementation
         static com_ptr<CascadiaSettings> FromJson(const Json::Value& json);
         void LayerJson(const Json::Value& json);
 
+        void Export() const;
         Json::Value ToJson() const;
 
         static hstring SettingsPath();

src/cascadia/TerminalSettingsModel/CascadiaSettings.idl

@@ -11,6 +11,8 @@ namespace Microsoft.Terminal.Settings.Model
         CascadiaSettings(String json);
         CascadiaSettings Copy();
 
+        void Export();
+
         static CascadiaSettings LoadDefaults();
         static CascadiaSettings LoadAll();
         static CascadiaSettings LoadUniversal();

src/cascadia/TerminalSettingsModel/CascadiaSettingsSerialization.cpp

@@ -1039,6 +1039,18 @@ const Json::Value& CascadiaSettings::_GetDisabledProfileSourcesJsonObject(const
     return json[JsonKey(DisabledProfileSourcesKey)];
 }
 
+// Method Description:
+// - Write the current state of CascadiaSettings to our settings.json file
+// Arguments:
+// - <none>
+// Return Value:
+// - <none>
+void CascadiaSettings::Export() const
+{
+    const auto json{ ToJson() };
+    _WriteSettings(json.toStyledString());
+}
+
 // Method Description:
 // - Create a new serialized JsonObject from an instance of this class
 // Arguments: