[8.x] [ResponseOps][Rules] Rule type selection modal content cut off …

…on small screens due to lack of vertical scrolling (elastic#195234) (elastic#195543)

# Backport

This will backport the following commits from `main` to `8.x`:
- [[ResponseOps][Rules] Rule type selection modal content cut off on
small screens due to lack of vertical scrolling
(elastic#195234)](elastic#195234)

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

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

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of vertical scrolling (elastic#195234)\n\n## Summary\r\n\r\nCloses
https:/elastic/kibana/issues/184048\r\n\r\n- the rule type
selection modal is now scrollable on smaller windows
\r\n\r\n\r\nhttps:/user-attachments/assets/47082b35-02a7-4b67-9a88-ee4200908bef\r\n\r\nCo-authored-by:
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Co-authored-by: Georgiana-Andreea Onoleață <[email protected]>

packages/kbn-alerts-ui-shared/src/rule_type_modal/components/rule_type_list.tsx

@@ -97,6 +97,8 @@ export const RuleTypeList: React.FC<RuleTypeListProps> = ({
  grow={1}
  style={{
  paddingTop: euiTheme.size.base /* Match drop shadow padding in the right column */,
+ paddingRight: euiTheme.size.base,
+ overflowY: 'auto',
  }}
  >
  <EuiFacetGroup>