[8.x] [Search] Move `ConnectorDefinition` types and consts (#…

…197676) (#199167)

# Backport

This will backport the following commits from `main` to `8.x`:
- [[Search] Move `ConnectorDefinition` types and consts
(#197676)](#197676)

<!--- Backport version: 9.4.3 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

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Move `ConnectorDefinition` types and consts (#197676)\n\n##
Summary\r\n\r\n- Move types and consts for
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Move `ConnectorDefinition` types and
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Move `ConnectorDefinition` types and consts (#197676)\n\n##
Summary\r\n\r\n- Move types and consts for
`ConnectorClientSideDefinition` and\r\n`ConnectorServerSideDefinition`
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Move `ConnectorDefinition` types and consts (#197676)\n\n##
Summary\r\n\r\n- Move types and consts for
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BACKPORT-->

---------

Co-authored-by: Navarone Feekery <[email protected]>
Co-authored-by: Elastic Machine <[email protected]>

packages/kbn-optimizer/limits.yml

@@ -138,7 +138,7 @@ pageLoadAssetSize:
   screenshotMode: 17856
   screenshotting: 22870
   searchAssistant: 19831
-  searchConnectors: 30000
+  searchConnectors: 65000
   searchHomepage: 19831
   searchIndices: 20519
   searchInferenceEndpoints: 20470