[Roadmap] Custom version name functionality

[JKarlavige]

What are you changing in this pull request and why?

Asana task

Adds a customDisplay property to the versions object to provide the option of setting a custom display name for a specific version.

For example, we can show dbt Cloud rather than v1.9 by setting the version in website/dbt-versions.js:

{
    version: "1.9",
    isPrerelease: true, 
    customDisplay: "dbt Cloud"
},

Preview

https://docs-getdbt-com-git-custom-version-name-dbt-labs.vercel.app

• Select a different version on both desktop & mobile and verify the version updates
• Refresh the page and verify the version persists after page reload
• Verify the correct version banners appear after updating the version on docs pages

Notes

Disregard the v1.9 banner, this only shows because I set the customDisplay property on a version which is using isPrerelease. Confirmed with Matt they will create a separate version to use the customDisplay property which doesn't use the isPrerelease flag in prod, and the banner will not show in that scenario.

TODO Before Merge

• Remove demo "dbt Cloud" version

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  • https://app.asana.com/0/0/1208103052992612

[vercel]

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Name	Status	Preview	Updated (UTC)
docs-getdbt-com	✅ Ready (Inspect)	Visit Preview	Aug 28, 2024 1:36pm

[john-rock]

lgtm!