Onboarding: Update site suggestion for UK and Ireland (#7031)

Task/Issue URL: https://app.asana.com/1/137249556945/task/1211642170473305?focus=true ### Description Update second site suggestion for UK and Ireland ### Steps to test this PR _UK_ - [x] Set device to en-GB - [x] Fresh install - [x] Go through onboarding - [x] In site suggestions step make sure the second option is `uk.yahoo.com` - [x] Tap on it - [x] Check it redirects correctly to `uk.yahoo.com` _Ireland_ - [x] Set device to en-IE - [x] Fresh install - [x] Go through onboarding - [x] In site suggestions step make sure the second option is `uk.yahoo.com` - [x] Tap on it - [x] Check it redirects correctly to `uk.yahoo.com` ### UI changes | Before | After | | ------ | ----- | <img width="357" height="807" alt="Screenshot 2025-10-29 at 23 46 18" src="https://github.com/user-attachments/assets/6e31b78a-9802-42bd-a6ff-ba32fbf0ec66" />|<img width="380" height="842" alt="Screenshot 2025-10-30 at 12 32 34" src="https://github.com/user-attachments/assets/2225b907-07b4-410e-b581-753a78882bec" />|

Author: nalcalag

app/src/main/java/com/duckduckgo/app/onboarding/store/OnboardingStoreImpl.kt

@@ -85,7 +85,7 @@ class OnboardingStoreImpl @Inject constructor(
 
  "GB" -> {
  site1 = "skysports.com "
- site2 = "bbc.co.uk"
+ site2 = "uk.yahoo.com"
  site3 = "ebay.com"
  site4Query = "britannica.com/animal/duck"
  }
@@ -127,7 +127,7 @@ class OnboardingStoreImpl @Inject constructor(
 
  "IE" -> {
  site1 = "skysports.com"
- site2 = "bbc.co.uk "
+ site2 = "uk.yahoo.com"
  site3 = "ebay.com"
  site4Query = "britannica.com/animal/duck"
  }