fix: Remove user.permissions, resolve it from accounts (#9990)

Remove the `user.permissions` field and resolve the permissions directly
from the accounts array in the user. This change ensures that the cache
or previous values from the last active account don't affect the
permissions.

In this PR: 
- Remove user.permissions usage, replace it with getUserPermissions
method.
- Remove json.permissions from user.json.jbuilder

app/javascript/dashboard/components/policy.vue

@@ -1,7 +1,11 @@
 <script setup>
 import { useStoreGetters } from 'dashboard/composables/store';
 import { computed } from 'vue';
-import { hasPermissions } from '../helper/permissionsHelper';
+import {
+  getUserPermissions,
+  hasPermissions,
+} from '../helper/permissionsHelper';
+
 const props = defineProps({
   permissions: {
     type: Array,
@@ -10,12 +14,17 @@ const props = defineProps({
 });
 
 const getters = useStoreGetters();
-const user = getters.getCurrentUser.value;
-const hasPermission = computed(() =>
-  hasPermissions(props.permissions, user.permissions)
-);
+const user = computed(() => getters.getCurrentUser.value);
+const accountId = computed(() => getters.getCurrentAccountId.value);
+const userPermissions = computed(() => {
+  return getUserPermissions(user.value, accountId.value);
+});
+const hasPermission = computed(() => {
+  return hasPermissions(props.permissions, userPermissions.value);
+});
 </script>
 
+<!-- eslint-disable vue/no-root-v-if -->
 <template>
   <div v-if="hasPermission">
     <slot />