[RAM] fix create rule titles font-size

[jcger]

Summary

Closes #145999

Screenshot with applied changes:

[elasticmachine]

Pinging @elastic/response-ops (Team:ResponseOps)

[XavierM]

Let's backport it to 8.6, what do you think?

[kibana-ci]

💚 Build Succeeded

• Buildkite Build
• Commit: 0ac15c6

Metrics [docs]

Unknown metric groups

ESLint disabled in files

id	before	after	diff
osquery	1	2	+1

ESLint disabled line counts

id	before	after	diff
enterpriseSearch	19	21	+2
fleet	59	65	+6
osquery	109	115	+6
securitySolution	443	449	+6
total			+20

Total ESLint disabled count

id	before	after	diff
enterpriseSearch	20	22	+2
fleet	68	74	+6
osquery	110	117	+7
securitySolution	520	526	+6
total			+21

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@elasticmachine merge upstream