style: adding more space to app-preview content

[wrt95]

Description

• adding some style to add more space on the preview page
  

Related Issue(s)

• PR itself

Verification

• Your code builds clean without any errors or warnings
• Manual testing done (required)
• Relevant automated test added (if you find this hard, leave it and we'll help out)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 94.57%. Comparing base (b8d6903) to head (bdd7c34).

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #13790   +/-   ##
=======================================
  Coverage   94.57%   94.57%           
=======================================
  Files        1624     1624           
  Lines       21817    21817           
  Branches     2572     2572           
=======================================
  Hits        20634    20634           
  Misses        940      940           
  Partials      243      243           

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[standeren]

Nice solution! 😎 Only one comment