Fix headings

[madelondohmen]

Changes

Headings were missing/styling was wrong.

Demo

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Code Checklist

• [x] All the commits in this PR are properly PGP-signed and verified.
• [x] This PR only contains functionality relevant to the issue.
• [ ] I have written unit tests for the changes or fixes I made.
• [x] I have checked the documentation and made changes where necessary.
• [x] I have performed a self-review of my code and refactored it to the best of my abilities.

• [ ] Tickets have been created for newly discovered issues.
• [ ] For any non-trivial functionality, I have added integration and/or end-to-end tests.
• [ ] I have informed others of any required .env changes files if required and changed the .env-dist accordingly.
• [ ] I have included comments in the code to elaborate on what is not self-evident from the code itself, including references to issues and discussions online, or implicit behavior of an interface.

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Checklist for code reviewers:

Copy-paste the checklist from the docs/source/templates folder into your comment.

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Checklist for QA:

Copy-paste the checklist from the docs/source/templates folder into your comment.

[stephanie0x00]

Checklist for QA:

• [x] I have checked out this branch, and successfully ran a fresh make reset.
• [x] I confirmed that there are no unintended functional regressions in this branch:
  • [x] I have managed to pass the onboarding flow
  • [x] Objects and Findings are created properly
  • [x] Tasks are created and completed properly
• [x] I confirmed that the PR's advertised feature or hotfix works as intended.
• [x] I checked the logs for errors and/or warnings and made issues where necessary

What works:

UI seems to look good.

What doesn't work:

n/a

Bug or feature?:

n/a