[SITES-19919] Fixed List (v4) missing teaser image for page with external redirect

[myronenko]

Jira: https://jira.corp.adobe.com/browse/SITES-19919 There are 3 distinct cases:

• internal page list item
• internal page list item with external redirect
• external page list item

First and third cases were handled correctly But in the second case the page was treated as external (3rd case) leading to the missing teaser image The current fix makes sure that in the 2nd case the page is considered internal just like in the 1st case

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 87.19%. Comparing base (e333b37) to head (0676ada).

Files	Patch %	Lines
...m/core/components/internal/models/v4/ListImpl.java	0.00%	0 Missing and 1 partial :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #2686 +/- ## ============================================ - Coverage 87.21% 87.19% -0.02% Complexity 2665 2665 ============================================ Files 233 233 Lines 7123 7123 Branches 1085 1085 ============================================ - Hits 6212 6211 -1 Misses 362 362 - Partials 549 550 +1 ```

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[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
No data about Duplication

See analysis details on SonarCloud