The default template to create page does not contain thumbnail

The default template [0] does not contain a thumbnail. Is this by design? If yes, will a test case requiring a page with thumbnail have to create its own template resource?

cc - @dulvac , @volteanu

[0] https://github.com/adobe/aem-testing-clients/blob/aem-cloud/src/main/resources/com/adobe/cq/testing/junit/rules/template.json

Start with src/main/resources/com/adobe/cq/testing/junit/rules/template.json and inspect how tests create pages from this default template. Determine whether the missing thumbnail is intentional and what existing test expectations require. Done means the expected template or test behavior is clarified and the relevant resource or test is updated accordingly.

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