Quick fixes for OpenAPI search response schema

[mike12345567]

Description

As I've been working on the NextJS examples I noticed that there wasn't much of a definition available as a reference for the search schemas of the resources. This simply makes the search responses available as components that can be referenced, which importantly means that they can easily be used through our Typescript definitions that are generated from the OpenAPI spec - which makes the examples a bit more interesting.

[codecov-commenter]

Codecov Report

Merging #4852 (7707755) into develop (c3b6d74) will increase coverage by 0.01%.
The diff coverage is 66.66%.

@@             Coverage Diff             @@
##           develop    #4852      +/-   ##
===========================================
+ Coverage    69.18%   69.19%   +0.01%     
===========================================
  Files          145      145              
  Lines         5007     5012       +5     
  Branches       767      768       +1     
===========================================
+ Hits          3464     3468       +4     
- Misses        1089     1090       +1     
  Partials       454      454              

Impacted Files	Coverage Δ
...ackages/server/src/api/controllers/row/external.js	15.68% <0.00%> (ø)
packages/server/src/utilities/index.js	76.00% <80.00%> (+0.28%)	⬆️

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[Rory-Powell]

LGTM 👍

[github-actions]

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2 out of 3 committers have signed the CLA.
✅ @shogunpurple
✅ @mike12345567
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