fix: prevent scenes/prefabs from becoming dirty

[iMobCoding]

fix: prevent scenes/prefabs from becoming dirty when localized values are unchanged

• Add value comparison in TryUpdateComponentLocalization before applying changes
• Only record undo and set property values when localized content actually differs
• Handle UnityEngine.Object equality properly using Unity's == operator
• Resolves issue where saving C# files or opening prefabs with localization components would unnecessarily mark scenes/prefabs as dirty

Check the issue here https://github.com/ibrahimpenekli/GameToolkit-Localization/issues/26