USWDS - Remove id from site title

[amyleadem]

Summary

• Fixed a bug that prevented the header from finding the designated site_title content during the HTML build process. The site title appeared with the accurate value in Storybook, but showed the default Home value in the html files.
• Removed the id attribute from the usa-logo element. This id required maintenance of multiple lines of JSON but did not seem to serve a clear purpose.
  • This might be too bold of an approach. If we prefer, we can keep the id attribute and just create a standard value for all uses.

Related PR

This was originally intended to be merged into #5311.

Preview link

• Header
• Site title

Related PR

Changelog PR: uswds/uswds-site#2124

Testing and review

• Confirm that the site title content in the header component is <Project title> for both Storybook and the following files in html-templates:
  • usa-header.html
  • usa-header~megamenu.html
  • usa-header--extended.html
  • usa-header--extended-megamenu.html
• Consider if there is any need for the id in the site title and if it is advisable to remove.

[mejiaj]

Looks good, I tested:

• Output HTML from npm run build:html
• StorybookJS components (headers, site title, and nav partial).

[mahoneycm]

lgtm!

• Confirmed ID has been removed
• Confirmed correct title is displaying in storybook as well as html templates after build:html
• Confirmed USWDS is not referencing the ID in any existing code.

[amyleadem]

@thisisdano This PR was originally intended to be merged into #5311 so it does not have its own issue. #5311 has already been merged into develop, so I've tagged this as a separate 3.5.0 item.