refactor: remove unused ProfileHeader component and related accessibility tests

Author: Your Name

i18n/locales/en.json

@@ -365,8 +365,6 @@
       "share_button": "Share on Bluesky",
       "compose_text": "Hey {'@'}{handle}! Have you checked out npmx.dev yet? It's a browser for the npm registry that's fast, modern, and open-source.\nhttps://npmx.dev"
     },
-    "avatar_alt": "Profile avatar",
-    "unknown_profile": "Unknown profile",
     "linked_accounts": {
       "status": {
         "verified": "Verified",

test/nuxt/a11y.spec.ts

@@ -273,7 +273,6 @@ import SizeIncrease from '~/components/Package/SizeIncrease.vue'
 import Likes from '~/components/Package/Likes.vue'
 import AccountItem from '~/components/AccountItem.vue'
 import LinkedAccounts from '~/components/LinkedAccounts.vue'
-import ProfileHeader from '~/components/ProfileHeader.vue'
 import type { VueUiXyDatasetItem } from 'vue-data-ui'
 
 describe('component accessibility audits', () => {
@@ -915,22 +914,6 @@ describe('component accessibility audits', () => {
     })
   })
 
-  describe('ProfileHeader', () => {
-    it('should have no accessibility violations with profile data', async () => {
-      const component = await mountSuspended(ProfileHeader, {
-        props: {
-          profile: {
-            name: 'npmx Team',
-            avatar: 'https://api.dicebear.com/9.x/shapes/svg?seed=npmx',
-            description: 'Open source maintainers',
-          },
-        },
-      })
-      const results = await runAxe(component)
-      expect(results.violations).toEqual([])
-    })
-  })
-
   describe('LinkedAccounts', () => {
     it('should have no accessibility violations with account list', async () => {
       const component = await mountSuspended(LinkedAccounts, {