[frontend] fix security menu redirections(#14736)

[CelineSebe]

Proposed changes

*Expands access to the ‘Security’ root of the settings and adds a redirect to the appropriate Security subpage based on the permissions granted

Related issues

• Can't access the setting>security page #14736

Checklist

• I consider the submitted work as finished
• I tested the code for its functionality
• I wrote test cases for the relevant uses case (coverage and e2e)
• I added/update the relevant documentation (either on github or on notion)
• Where necessary I refactored code to improve the overall quality

Further comments

[codecov]

Codecov Report

❌ Patch coverage is 0% with 19 lines in your changes missing coverage. Please review.
✅ Project coverage is 32.36%. Comparing base (4a42577) to head (e7b4abd).
⚠️ Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
...cti-front/src/private/components/settings/Root.tsx	0.00%	18 Missing ⚠️
...encti-front/src/private/components/nav/LeftBar.jsx	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master   #14759      +/-   ##
==========================================
- Coverage   32.37%   32.36%   -0.01%     
==========================================
  Files        3098     3098              
  Lines      211033   211049      +16     
  Branches    38245    38250       +5     
==========================================
+ Hits        68312    68315       +3     
- Misses     142721   142734      +13     

Flag	Coverage Δ
opencti-client-python	45.48% <ø> (ø)
opencti-front	2.83% <0.00%> (-0.01%)	⬇️
opencti-graphql	67.74% <ø> (+<0.01%)	⬆️

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[Copilot]

Pull request overview

Fixes the Settings → Security menu redirection so users with any security-related capability (markings, dissemination lists, authentications, org admin, etc.) land on an appropriate Security subpage instead of being bounced back to Parameters.

Changes:

• Update the /dashboard/settings/accesses route guard to allow additional security-related capabilities (markings, dissemination, auth).
• Add a capability-aware redirect component to send users to the first Security subpage they can access.
• Update the left navigation permission checks so the “Security” entry is shown for the same broader set of capabilities.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
opencti-platform/opencti-front/src/private/components/settings/Root.tsx	Broadens access to the Settings “Security” root route and adds a redirect to the correct Security subpage based on granted capabilities.
opencti-platform/opencti-front/src/private/components/nav/LeftBar.jsx	Aligns the left navigation “Security” visibility and Settings section gating with the expanded security-related capabilities.