Description

Fix missing colons and a single missing comma in the typescript codeblock for the theme preview

Before

After

Checks

• Adding quotes?
  • Make sure to include translations for the quotes in the description (or another comment) so we can verify their content.
• Adding a language?
  • Make sure to follow the languages documentation
  • Add language to packages/contracts/src/schemas/languages.ts
  • Add language to exactly one group in frontend/src/ts/constants/languages.ts
  • Add language json file to frontend/static/languages
• Adding a theme?
  • Make sure to follow the themes documentation
  • Add theme to packages/contracts/src/schemas/themes.ts
  • Add theme to frontend/src/ts/constants/themes.ts
  • Add theme css file to frontend/static/themes
  • Also please add a screenshot of the theme, it would be extra awesome if you do so!
• Adding a layout?
  • Make sure to follow the layouts documentation
  • Add layout to packages/contracts/src/schemas/layouts.ts
  • Add layout json file to frontend/static/layouts
• Check if any open issues are related to this PR; if so, be sure to tag them below.
• Make sure the PR title follows the Conventional Commits standard. (https://www.conventionalcommits.org for more info)
• Make sure to include your GitHub username prefixed with @ inside parentheses at the end of the PR title.