[8.14] fix: [Security > Discover][KEYBOARD]: Discover data grid cells must show a visible focus halo (#181598)

[kibanamachine]

Backport

This will backport the following commits from main to 8.14:

• fix: [Security > Discover][KEYBOARD]: Discover data grid cells must show a visible focus halo (#181598)

Questions ?

Please refer to the Backport tool documentation

[kibana-ci]

:yellow_heart: Build succeeded, but was flaky

• Buildkite Build
• Commit: f267b5b66312b3941d744db818fe51be4b1a3be9

Failed CI Steps

• FTR Configs #78

Test Failures

• [job] [logs] FTR Configs #78 / Alerting alerts_as_data install alerts as data resources should install context specific alerts as data resources on startup

Metrics [docs]

Async chunks

Total size of all lazy-loaded chunks that will be downloaded as the user navigates the app

id	before	after	diff
cloudSecurityPosture	452.3KB	451.8KB	-508.0B
discover	638.0KB	637.5KB	-508.0B
securitySolution	17.3MB	17.3MB	-2.0KB
slo	723.4KB	722.9KB	-508.0B
total			-3.5KB

To update your PR or re-run it, just comment with: @elasticmachine merge upstream

cc @alexwizp