Fixes ads being toggled on

[NejcZdovc]

Resolves brave/brave-browser#2986

Submitter Checklist:

• Submitted a ticket for my issue if one did not already exist.
• Used Github auto-closing keywords in the commit message.
• Added/updated tests for this change (for new code or code which already has tests).
• Verified that these changes build without errors on
  • Windows
  • macOS
  • Linux
• Verified that these changes pass automated tests (npm test brave_unit_tests && npm test brave_browser_tests) on
  • Windows
  • macOS
  • Linux
• Ran git rebase master (if needed).
• Ran git rebase -i to squash commits (if needed).
• Tagged reviewers and labelled the pull request as needed.
• Request a security/privacy review as needed.
• Add appropriate QA labels (QA/Yes or QA/No) to include the closed issue in milestone

Test Plan:

pre-requirement

1. go to 0.59
2. clean profile
3. enable rewards via panel
4. close the bowser
5. rename profile to development

Test plan

1. go to this PR
2. start the browser
3. go to rewards settings page
4. make sure that ads are off

Plan 2 (no need for pre-requirement)

1. clean profile on this PR
2. create wallet in the panel
3. make sure that settings page is updated as well / create it via settings page and make sure that panel is enabled / open multiple rewards windows and enable it in one and make sure that all opdate

Reviewer Checklist:

• New files have MPL-2.0 license header.
• Request a security/privacy review as needed.
• Adequate test coverage exists to prevent regressions
• Verify test plan is specified in PR before merging to source

[ryanml]

++