Splits severity and confidence levels in the FE

- Updates the constants file
- Updates the filters file
- Updates the tests

ee/app/assets/javascripts/security_dashboard/store/modules/filters/constants.js

 import { s__ } from '~/locale';
 
-export const SEVERITIES = {
+export const SEVERITY_LEVELS = {
   critical: 'Critical',
   high: 'High',
   medium: 'Medium',
   low: 'Low',
   unknown: 'Unknown',
-  experimental: 'Experimental',
+  info: 'Info',
+  undefined: 'Undefined',
+};
+
+export const CONFIDENCE_LEVELS = {
+  confirmed: 'Confirmed',
+  high: 'High',
+  medium: 'Medium',
+  low: 'Low',
+  unknown: 'Unknown',
   ignore: 'Ignore',
+  experimental: 'Experimental',
   undefined: 'Undefined',
 };
 

ee/app/assets/javascripts/security_dashboard/store/modules/filters/state.js

-import { SEVERITIES, REPORT_TYPES } from './constants';
+import { SEVERITY_LEVELS, REPORT_TYPES } from './constants';
 
 export default () => ({
   filters: [
@@ -10,7 +10,7 @@ export default () => ({
           name: 'All',
           id: 'all',
         },
-        ...Object.entries(SEVERITIES).map(severity => {
+        ...Object.entries(SEVERITY_LEVELS).map(severity => {
           const [id, name] = severity;
           return { id, name };
         }),

ee/changelogs/unreleased/9397-split-severity-and-confidence-sets-of-values-for-vulnerabilities-FE.yml

+---
+title: Splits the severity and confidence constants in the group security dashboard
+  frontend
+merge_request: 9535
+author:
+type: other

ee/spec/javascripts/security_dashboard/components/filter_spec.js

@@ -19,8 +19,8 @@ describe('Filter component', () => {
       vm.$destroy();
     });
 
-    it('should display all 9 severity options', () => {
-      expect(vm.$el.querySelectorAll('.dropdown-item').length).toEqual(9);
+    it('should display all 8 severity options', () => {
+      expect(vm.$el.querySelectorAll('.dropdown-item').length).toEqual(8);
     });
 
     it('should display a check next to only the selected item', () => {