Migrate to uHtml v4

Description

A new major version of uHtml has been release. GeoGirafe has to use this new version.

Job done

• Reference the new version of uHtml and make the necessary changes
• Manage caching for unsafe content
• uHtml comes now with a right module definition, so remove the dummy declare module for this library
• Moved the vitest configuration (nothing to do with this change, but it caused some problems while running the UT)
• Exclude devDependency from job executing npm outdated to check only the important dependencies.
• Because of breakings changes, the version is now 0.6

Definition of Done

For the Developer:

• Code compiles and conforms to defined coding standards (eslint, tsc, prettier).
• If necessary (at the developer's discretion), unit tests have been added for critical parts.
• All unittests run without error.
• Sonar-Scan returns no new issues or security hotspots.
• Documentation has been updated where necessary (see documentation repository).
• Merge-Request contains a few explanations of what was done.
• A Reviewer has been assigned to the Merge-Request.

For the Reviewer:

• New code was reviewed.
• If comments could be added on unclear code, the developer has been informed.
• If unitests could be added in certain places, the developer has been informed.
• Merge-Request was merged on main branch.
• All pipelines work.
• The changes were tested on demo environment.
• Application performance has not been degraded by the modifications.