feature (ui): Add an MMDL Notification Banner on Mako Homepage

[RanyeM]

🎫 Linked Ticket

https://jiraent.cms.gov/projects/OY2/issues/OY2-30885?filter=myopenissues

💬 Description / Notes

A notification banner is created in the Mako application that highlights the new MMDL feature.
The banner should appear only the first time the user accesses Mako after the MMDL feature has been added.
The banner should be dismissible by the user, with a clear and accessible option to close the banner.
Ensure that the banner does not reappear once dismissed by the user, even after subsequent logins.
The design and placement of the banner should align with the existing UI/UX standards of the Mako application.
The “Go to FAQs” button should take you to the section on the FAQ page where the MMDL links are located. The dropdown list should be expanded by default.

🛠 Changes

A notification banner was created in the Mako application to highlight the new MMDL feature.
The banner appears only the first time the user accesses Mako after adding the MMDL feature.
The banner can be dismissible by the user, with a clear and accessible option to close the banner.
banner does not reappear once dismissed by the user, even after subsequent logins.
The design and placement of the banner align with the existing UI/UX standards of the Mako application.
The “Go to FAQs” button takes you to the FAQ page section where the MMDL links are located.

[github-actions]

Coverage Report

Status	Category	Percentage	Covered / Total
🔵	Lines	75.15%	6484 / 8627
🔵	Statements	74.38%	6809 / 9154
🔵	Functions	69.7%	1958 / 2809
🔵	Branches	42.58%	1218 / 2860

File Coverage

File	Stmts	Branches	Functions	Lines	Uncovered Lines
Changed Files
react-app/src/components/Banner/MMDLSpaBanner.tsx	66.66%	50%	50%	80%	7, 9
react-app/src/components/Layout/index.test.tsx	100%	70%	97.91%	100%
react-app/src/components/Layout/index.tsx	93.02%	94.44%	100%	95%	82, 254-255

Generated in workflow #1262 for commit 84bafe3 by the Vitest Coverage Report Action

[charmcitygavin]

@RanyeM: It looks like there's a docs directory that got included in this PR. I don't see this directory on main currently. Could it have been merged in by mistake? I'm not sure where it comes from but I'm assuming it's not related to the banner work.

[charmcitygavin]

The banner looks great! Awesome work. 🎉 The only questions I have are about that stray docs dir and banner persistence.

[github-actions]

🎉 This PR is included in version 1.5.0-val.100 🎉

The release is available on GitHub release

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