[8.x] [Synthetics] For lens embeddable apply styling workaround for p…

…anel border !! (elastic#198270) (elastic#198319)

# Backport

This will backport the following commits from `main` to `8.x`:
- [[Synthetics] For lens embeddable apply styling workaround for panel
border !! (elastic#198270)](elastic#198270)

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

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

<!--BACKPORT
[{"author":{"name":"Shahzad","email":"[email protected]"},"sourceCommit":{"committedDate":"2024-10-30T12:32:17Z","message":"[Synthetics]
For lens embeddable apply styling workaround for panel border !!
(elastic#198270)\n\n## Summary\r\n\r\nFixes
https://github.com/elastic/kibana/issues/198273\r\n\r\nFor lens
embeddable apply styling workaround for panel border !!\r\n\r\n<img
width=\"1726\"
alt=\"image\"\r\nsrc=\"https://github.com/user-attachments/assets/df2bcc4c-d069-44a7-99c3-59696566a6b3\">","sha":"496a65230262cb99d72673ade454ece5b380ddf5","branchLabelMapping":{"^v9.0.0$":"main","^v8.17.0$":"8.x","^v(\\d+).(\\d+).\\d+$":"$1.$2"}},"sourcePullRequest":{"labels":["release_note:skip","v9.0.0","ci:project-deploy-observability","Team:obs-ux-management","v8.16.0","backport:version","v8.17.0"],"title":"[Synthetics]
For lens embeddable apply styling workaround for panel border
!!","number":198270,"url":"https://github.com/elastic/kibana/pull/198270","mergeCommit":{"message":"[Synthetics]
For lens embeddable apply styling workaround for panel border !!
(elastic#198270)\n\n## Summary\r\n\r\nFixes
https://github.com/elastic/kibana/issues/198273\r\n\r\nFor lens
embeddable apply styling workaround for panel border !!\r\n\r\n<img
width=\"1726\"
alt=\"image\"\r\nsrc=\"https://github.com/user-attachments/assets/df2bcc4c-d069-44a7-99c3-59696566a6b3\">","sha":"496a65230262cb99d72673ade454ece5b380ddf5"}},"sourceBranch":"main","suggestedTargetBranches":["8.16","8.x"],"targetPullRequestStates":[{"branch":"main","label":"v9.0.0","branchLabelMappingKey":"^v9.0.0$","isSourceBranch":true,"state":"MERGED","url":"https://github.com/elastic/kibana/pull/198270","number":198270,"mergeCommit":{"message":"[Synthetics]
For lens embeddable apply styling workaround for panel border !!
(elastic#198270)\n\n## Summary\r\n\r\nFixes
https://github.com/elastic/kibana/issues/198273\r\n\r\nFor lens
embeddable apply styling workaround for panel border !!\r\n\r\n<img
width=\"1726\"
alt=\"image\"\r\nsrc=\"https://github.com/user-attachments/assets/df2bcc4c-d069-44a7-99c3-59696566a6b3\">","sha":"496a65230262cb99d72673ade454ece5b380ddf5"}},{"branch":"8.16","label":"v8.16.0","branchLabelMappingKey":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"state":"NOT_CREATED"},{"branch":"8.x","label":"v8.17.0","branchLabelMappingKey":"^v8.17.0$","isSourceBranch":false,"state":"NOT_CREATED"}]}]
BACKPORT-->

Co-authored-by: Shahzad <[email protected]>

x-pack/plugins/observability_solution/exploratory_view/public/components/shared/exploratory_view/embeddable/embeddable.tsx

@@ -288,5 +288,8 @@ const Wrapper = styled.div<{
       right: 50%;
       transform: translate(50%, -50%);
     }
+    .embPanel {
+      outline: none;
+    }
   }
 `;