[8.x] [Obs AI Assistant] Update colors in the AI Assistant icon (#210233

) (#210273)

# Backport

This will backport the following commits from `main` to `8.x`:
- [[Obs AI Assistant] Update colors in the AI Assistant icon
(#210233)](#210233)

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

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

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https://github.com/elastic/kibana/issues/208816\n\n## Summary\n\nUpdate
the AI Assistant icon colors\n\n\n### Checklist\n\n- [x] The PR
description includes the appropriate Release Notes section,\nand the
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BACKPORT-->

Co-authored-by: Viduni Wickramarachchi <viduni.wickramarachchi@elastic.co>

x-pack/platform/packages/shared/ai-assistant/icon/svg/assistant.tsx

@@ -17,12 +17,12 @@ const AssistantLogo = (props: React.SVGProps<SVGSVGElement>) => (
     {...props}
   >
     <path fill="#F04E98" d="M36 28h24v36H36V28Z" />
-    <path fill="#00BFB3" d="M4 46c0-9.941 8.059-18 18-18h6v36h-6c-9.941 0-18-8.059-18-18Z" />
+    <path fill="#02BCB7" d="M4 46c0-9.941 8.059-18 18-18h6v36h-6c-9.941 0-18-8.059-18-18Z" />
     <path
-      fill="#343741"
+      fill="#0B64DD"
       d="M60 12c0 6.627-5.373 12-12 12s-12-5.373-12-12S41.373 0 48 0s12 5.373 12 12Z"
     />
-    <path fill="#FA744E" d="M6 23C6 10.85 15.85 1 28 1v22H6Z" />
+    <path fill="#FEC514" d="M6 23C6 10.85 15.85 1 28 1v22H6Z" />
   </svg>
 );