Move EE stories to ee/

This moves EE components' stories to the `ee/` namespace so that they
are clearly separated from other stories.

doc/development/fe_guide/storybook.md

@@ -46,10 +46,12 @@ To add a story:
 
 1. Write the story as per the [official Storybook instructions](https://storybook.js.org/docs/vue/writing-stories/introduction/)
 
-   Notes:
-   - Specify the `title` field of the story as the component's file path from the `javascripts/` directory.
-
-     For example, if the component is located at `app/assets/javascripts/vue_shared/components/sidebar/todo_toggle/todo_button.vue`, specify the story `title` as `vue_shared/components/sidebar/todo_toggle/todo_button`. This will ensure the Storybook navigation maps closely to our internal directory structure.
+   NOTE:
+   Specify the `title` field of the story as the component's file path from the `javascripts/` directory.
+   For example, if the component is located at `app/assets/javascripts/vue_shared/components/sidebar/todo_toggle/todo_button.vue`,
+   specify the story `title` as `vue_shared/components/sidebar/todo_toggle/todo_button`.
+   If the component is located in the `ee/` directory, make sure to prefix the story's title with `ee/` as well.
+   This will ensure the Storybook navigation maps closely to our internal directory structure.
 
 ## Mock backend APIs
 

ee/app/assets/javascripts/usage_quotas/components/statistics_seats_card.stories.js

@@ -3,7 +3,7 @@ import StatisticsSeatsCard from './statistics_seats_card.vue';
 
 export default {
   component: StatisticsSeatsCard,
-  title: 'usage_quotas/components/statistics_seats_card',
+  title: 'ee/usage_quotas/components/statistics_seats_card',
 };
 
 const Template = (_, { argTypes }) => ({

ee/app/assets/javascripts/vue_shared/security_reports/components/status_badge.stories.js

@@ -2,7 +2,7 @@ import StatusBadge, { VARIANTS } from './status_badge.vue';
 
 export default {
   component: StatusBadge,
-  title: 'vue_shared/security_reports/components/status_badge',
+  title: 'ee/vue_shared/security_reports/components/status_badge',
   argTypes: {
     state: {
       control: 'select',

ee/app/assets/javascripts/vue_shared/survey_banner/survey_banner.stories.js

@@ -3,7 +3,7 @@ import SurveyBanner from './survey_banner.vue';
 
 export default {
   component: SurveyBanner,
-  title: 'vue_shared/components/survey_banner',
+  title: 'ee/vue_shared/components/survey_banner',
 };
 
 const Template = (args, { argTypes }) => ({

ee/app/assets/javascripts/vulnerabilities/components/vulnerability_details.stories.js

@@ -8,7 +8,7 @@ const mergeWithArgsFromStory = (story, overrides) => merge({}, story.args, overr
 
 export default {
   component: VulnerabilityDetails,
-  title: 'vulnerabilities/components/vulnerability_details',
+  title: 'ee/vulnerabilities/components/vulnerability_details',
   argTypes: {
     severity: {
       options: Object.values(SEVERITY_LEVELS),