[UI copy]: SIEM Rule migration MVP copy

[bojanasan]

Description

WHAT

The SIEM Rule AI Migration feature MVP is releasing and we need to evaluate the copy for clarity and depth. We've done a series of customer interviews and validated that communicating clearly and with the right amount of info is important to users. More info about the interviews can be found in this issue

We'd like to evaluate the UI for:

• clarity of explanation of the language, concepts and steps of the SIEM migrations (especially with the new concept of uploading rules ahead of ingesting data, when migrating rules)
• the right depth of info within the UI
• link to relevant info and docs outside the UI

WHY

Main Issue #8933

Related links / assets

Please include each of the following, if applicable:
Figma link(s): Mocks
Github epic link(s): https://github.com/elastic/security-team/issues/8933
Github issue link(s):
How to find the text in a production environment: Figma only
Testing environment information: NA
NOTE: To keep sensitive information such as credentials secure, do not include it in this form.

Which documentation set does this change impact?

ESS and serverless

Feature differences

TBC if both but there would be no difference.

Software version

WHEN

Feature is being release in 8.18, feature freeze January 15th.

Collaborators

PM: @Charelzard
Designer: @bojanasan
Developer: @semd + tbd
Others (if applicable): to be informed @catswantner @Ayeletpazakler

Timeline / deliverables

We'd like to setup a call to review the mocks/GH issue with a writer asap and copy by mid Nov. if possible.