Fix: Hide version selector when there are no versions

[charlieboles]

Only some books have versions. Most don’t. On pages for books that don’t have version. the version drop-down shouldn’t be shown.

Test URLs:

• Before: https://main--prisma-cloud-docs-website--hlxsites.hlx.live/en/enterprise-edition/content-collections/get-started/welcome-to-prisma-cloud
• After: https://fix-version-dd--prisma-cloud-docs-website--hlxsites.hlx.live/en/enterprise-edition/content-collections/get-started/welcome-to-prisma-cloud

[aem-code-sync[bot]]

Hello, I'm the AEM Code Sync Bot and I will run some test suites that validate the page speed. In case there are problems, just click the checkbox below to rerun the respective action.

• [ ] Re-run PSI Checks

[aem-code-sync[bot]]

Page	Scores	Audits	Google
/en/enterprise-edition/content-collections/get-started/welcome-to-prisma-cloud

[aem-code-sync[bot]]

Page	Scores	Audits	Google
/en/enterprise-edition/content-collections/get-started/welcome-to-prisma-cloud