feat: badge-linked profile avatars (TASK-22142)

e2e/shots/fixtures.spec.ts

@@ -110,7 +110,8 @@ for (const [name, fixture] of Object.entries(FIXTURES)) {
         await page.clock.setFixedTime(FROZEN_NOW)
         await page.addInitScript(seenOnceModals)
 
-        await page.goto(`${fixture.route}?${FIXTURE_PARAM}=${name}`, { waitUntil: 'domcontentloaded' })
+        const sep = fixture.route.includes('?') ? '&' : '?'
+        await page.goto(`${fixture.route}${sep}${FIXTURE_PARAM}=${name}`, { waitUntil: 'domcontentloaded' })
         await settle(page)
 
         // A build without NEXT_PUBLIC_VERCEL_ENV=preview ignores the param and