Update docusaurus to 3.5.1

[eleftherias]

Summary

This combines PRs #4113, #4114, #4115 and #4116 to ensure all docusaurus dependencies are updated at the same time.

Change Type

Mark the type of change your PR introduces:

• Bug fix (resolves an issue without affecting existing features)
• Feature (adds new functionality without breaking changes)
• Breaking change (may impact existing functionalities or require documentation updates)
• Documentation (updates or additions to documentation)
• Refactoring or test improvements (no bug fixes or new functionality)

Testing

Outline how the changes were tested, including steps to reproduce and any relevant configurations.
Attach screenshots if helpful.

Review Checklist:

• Reviewed my own code for quality and clarity.
• Added comments to complex or tricky code sections.
• Updated any affected documentation.
• Included tests that validate the fix or feature.
• Checked that related changes are merged.

[stacklok-cloud-staging]

Minder Vulnerability Report ✅

Minder analyzed this PR and found no vulnerable dependencies.

Vulnerability scan of e349740d:

• 🐞 vulnerable packages: 0
• 🛠 fixes available for: 0

[stacklok-cloud-staging]

Dependency Information

Minder analyzed the dependencies introduced in this pull request and detected that some dependencies do not meet your security profile.

📦 Dependency: @docsearch/css

Trusty Score: 0

Scoring details

Component	Score
Malicious	false
Package activity	0
Provenance	0

📦 Dependency: dependencies

Trusty Score: 0

Scoring details

Component	Score
Trust-summary	1.2
Provenance	5
Malicious	false
User activity	0
Repository activity	0
From	activity
Package activity	0

Alternatives

Package	Score	Description
npm-check	7.8
david	6.4
npm-check	7.8
david	6.4
npm-check	7.8
david	6.4
npm-check	7.8
david	6.4
npm-check	7.8
david	6.4
npm-check	7.8
david	6.4
npm-check	7.8
david	6.4
npm-check	7.8
david	6.4
npm-check	7.8
david	6.4
npm-check	7.8
david	6.4
npm-check	7.8
david	6.4
npm-check	7.8
david	6.4
npm-check	7.8
david	6.4
npm-check	7.8
david	6.4

📦 Dependency: infima

Trusty Score: 0

Scoring details

Component	Score
Malicious	false
Package activity	0
Provenance	0

[coveralls]

coverage: 53.899%. remained the same
when pulling 1bd1f59 on eleftherias:docusaurus-3.5.1
into 98c9331 on stacklok:main.