Add 889 Banner While SAM.gov fixes issue

[johnbeallgsa]

Please add a banner on the top of the website about the issue that SAM.gov is having.

@CodyHinze Do you have a suggestion for text on the banner?
@felder101 Mark had previously used a banner on the site when we had issues.

This user story is part of #165

[felder101]

Created a preview branch with a similar alert of what was done in the past. Branch link is below. Just need to finalize the wording. Once finalized I can create a PR for Mark to review.

https://federalist-adaef58d-ff3c-4a0f-961c-c9916e7bff41.sites.pages.cloud.gov/preview/gsa/889-tool/GSA/issue-166/alert-banner/#/

[CodyHinze]

Suggested Text for the current issue.

Search Issues
SAM.gov is having technical issues that may cause search errors on the 889 tool. The GSA technical team is working to solve the issue. Thank you for your patience.

[CodyHinze]

Also for reference, the previously used message was as follows:

Timeout Issues
SAM.gov is experiencing intermittent timeout issues, which may result in search errors on this 889 tool. GSA technical teams are currently remediating the issue, and your patience is appreciated. Thank You.

[CodyHinze]

Updated Generic Message:

Search Issues
We are having technical issues that may cause search errors on the 889 tool. The GSA technical team is working to solve the issue. Thank you for your patience.

[felder101]

Alert message has been promoted to production on 1/22/24.

[LoraBradford]

Approved, thank you! Moving to done!