Update no-use-v-if-v-for category to essential

Author: michalsnik

Diff for: lib/rules/no-use-v-if-with-v-for.js

@@ -51,7 +51,7 @@ module.exports = {
   meta: {
     docs: {
       description: 'disallow use v-if on the same element as v-for',
-      category: 'recommended',
+      category: 'essential',
       url: 'https://github.com/vuejs/eslint-plugin-vue/blob/v5.0.0-beta.1/docs/rules/no-use-v-if-with-v-for.md'
     },
     fixable: null,