Add documentation for custom Trivy checks and update sidebar navigation

[krusty93]

Introduce documentation for custom Trivy checks specific to DX, detailing their purpose, usage, and recommended actions. Update the sidebar navigation to include links to the new documentation.

Close CES-2161

[dx-release-internal]

⚠️ Missing Nx Version Plan

Nx Release reports that this PR has touched projects without version plan coverage.

Run pnpm nx release plan and add the generated version plans.

Nx Plan Check result:

NX   Touched projects based on changed files

  - docs

NOTE: You can adjust your "versionPlans.ignorePatternsForPlanCheck" config to stop certain files from resulting in projects being classed as touched for the purposes of this command.



 NX   Touched projects missing version plans

The following touched projects do not feature in any version plan files:
  - docs

Please use `nx release plan` to generate missing version plans, or adjust your "versionPlans.ignorePatternsForPlanCheck" config stop certain files from affecting the projects for the purposes of this command.

Run with --verbose to see the full list of changed files used for the touched projects logic.

This comment is managed automatically by Nx Release. Version plan guide

[github-actions]

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