@singshi90 : First you will have to add a language (if not already available, you need to specify the language code and locale etc for eg:- sv_SE) to Edit tag Dialog.
In CRXDE, edit the multi-value property languages of the node /content/cq:tags.
Please refer the documentation here: https://experienceleague.adobe.com/docs/experience-manager-65/content/implementing/developing/platfo...
After, you have added the language, it will start appearing in the Tag Editor dialog now and you can specify the Localized tag value for that language. Please refer AEM documentation: https://experienceleague.adobe.com/docs/experience-manager-65/content/sites/administering/contentman...
Some of the already accepted references: https://stackoverflow.com/questions/77045781/how-to-add-new-languages-to-aem-tags-for-localisation
thanks.