[Search:WebCrawlers:ViewCrawler:Manage Domains page]Missing mandatory field indications on Add content field rule flyout

[L1nBra]

Description Mandatory fields should have indications that they are mandatory even before filling them, that for user it would be clear which of them he/she needs to fill, check in order to proceed.

Preconditions Stateful Web crawlers -> View Crawler -> Manage Domains page, Extraction rules tab is opened. Domain is added.

Steps to reproduce

1.Navigate to Add content extraction rule button. 2.Observe Add content field rule flyout. 3.Fill Field name (f.e. Test). 4.Observe flyout.

UI elements

Actual Result

• No fields are marked as mandatory, only if user enters text in Field name and deletes it, then field has an error. Save button is inactive

Expected Result

• Mandatory fields have indication that they are mandatory.

Meta Issue

Kibana Version: 8.17.0-SNAPSHOT

OS: Windows 11 Pro

Browser: Chrome Version 130.0.6723.70 (Official Build) (64-bit)

WCAG or Vendor Guidance (optional)

• Understanding SC 3.3.2: Labels or Instructions (Level A)(https://www.w3.org/WAI/WCAG22/Understanding/labels-or-instructions.html)

Related to: https://github.com/elastic/search-team/issues/8256

[elasticmachine]

Pinging @elastic/kibana-accessibility (Project:Accessibility)