breaking: drop custom directive v-t (#2061)

Author: kazupon

docs/.vitepress/config.mts

@@ -202,6 +202,10 @@ function sidebarGuide() {
       text: 'Migrations',
       collapsible: true,
       items: [
+        {
+          text: 'Breaking Changes in v12',
+          link: '/guide/migration/breaking12'
+        },
         {
           text: 'Breaking Changes in v11',
           link: '/guide/migration/breaking11'

docs/guide/migration/breaking12.md

@@ -0,0 +1,5 @@
+# Breaking Changes in v12
+
+## Drop Custom Directive `v-t`
+
+**Reason**: This custom directive had already deprecated in warning about being dropped in v12. docs says, https://vue-i18n.intlify.dev/guide/migration/breaking11.html#deprecate-custom-directive-v-t