fix: enabling blockaid should be possible only if user is on mainnet

[jpuri]

Description

User should be able to enable blockaid only on mainnet.

Related issues

Fixes:

Manual testing steps

1. Open the application
2. Select Goreli network
3. Go to settings, it should not be possible to enable blockaid

Screenshots/Recordings

Pre-merge author checklist

• I’ve followed MetaMask Coding Standards.
• I've clearly explained what problem this PR is solving and how it is solved.
• I've linked related issues
• I've included manual testing steps
• I've included screenshots/recordings if applicable
• I’ve included tests if applicable
• [] I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.
• I’ve properly set the pull request status:
  • In case it's not yet "ready for review", I've set it to "draft".
  • In case it's "ready for review", I've changed it from "draft" to "non-draft".

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[github-actions]

E2E test started on Bitrise: https://app.bitrise.io/app/be69d4368ee7e86d/pipelines/7a3ac2c1-9dcf-4d48-a6fb-88fcdeef7614
You can also kick off another Bitrise E2E smoke test by removing and re-applying the (Run Smoke E2E) label

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (fd2e917) 39.83% compared to head (b0ca9b5) 39.83%.
Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8233   +/-   ##
=======================================
  Coverage   39.83%   39.83%           
=======================================
  Files        1233     1233           
  Lines       29820    29821    +1     
  Branches     2840     2840           
=======================================
+ Hits        11879    11880    +1     
  Misses      17252    17252           
  Partials      689      689           

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[sonarcloud]

Quality Gate passed

Kudos, no new issues were introduced!

0 New issues
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud