In spacceleratoraddon, add cms data for top-right links (sale, contact us, help)

[Xymmer]

For each of the links at top right:

Need cms data added to spacceleratoraddon (not regular sample data) for getting the link and for the page data itself.

• find a store (already there, already goes to the right page)
• sale (new)
• contact us (there is a link for this already, but we want it to go to a page; the same link in footer can go to same page)
• help (new)

To do:

• Create new nav component for the header -- Check if we have these links for other sites, and copy that structure. We have contact us and help links, but not sale -- note: help link might be specific to checking out, this new help is for general help, so if not the same, make a new one.
• Create new page data with dummy text for each of them: sale, contact us, help

Acceptance criteria:

• Can get slot/components in OCC API
• Can see slot/components in backoffice

The task to implement in Spartacus is #353.

[tobi-or-not-tobi]

The CMS data should reflect the model as implemented in the temporary Hardcoded HardcodedSiteLinks interceptor. With this ticket, the interceptor must be removed. This includes the storefinder link. For each link, a content page should be returned as well.

[WeizhengSap]

SPA PR is here: https://github.com/SAP/cloud-commerce-spartacus-storefront/pull/1210 sample data PR is here: https://stash.hybris.com/projects/C3PO/repos/spacceleratorsamplesaddon/pull-requests/13/overview

[WeizhengSap]

3 Content Pages are created. Page Labels are: "sale", "help", and "contactUs"

[LTiger14]

Passed QA