Hide analytics link from non-admin users (#5789)

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### Motivation and context
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Default user does'nt have access to Analytics page, so there is no
reason to show Analytics link in the header

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CHANGELOG.md

@@ -48,6 +48,7 @@ Tracks can be exported/imported to/from Datumaro and Sly Pointcloud formats (<ht
   `/api/projects/{id}.tasks`, `/api/tasks/{id}.segments`, `/api/jobs/{id}.issues`,
   `/api/issues/{id}.comments`, `/api/projects | tasks | jobs/{id}.labels`
   (<https://github.com/opencv/cvat/pull/5662>)
+- Hide analytics link from non-admin users (<https://github.com/opencv/cvat/pull/5789>)
 
 ### Deprecated
 - TBD

cvat-ui/src/components/header/header.tsx

@@ -470,7 +470,7 @@ function HeaderContainer(props: Props): JSX.Element {
                         Models
                     </Button>
                 ) : null}
-                {isAnalyticsPluginActive ? (
+                {isAnalyticsPluginActive && user.isSuperuser ? (
                     <Button
                         className={getButtonClassName('analytics')}
                         type='link'