ACP2E-1189: [Documentation] Add Bundle Product automatic status update rules into Bundle Product documentation

[vkolesny]

Purpose of this pull request

Describe the goal and the type of changes this pull request covers. Tell us what changes you are making and why.

According to changes implemented in scope of ACP2E-262 please add following changes in documentation:

Bundle Product Stock Status is automatically changed to "Out of Stock" if either:

• All options are optional and all associated products are out of stock;
• Some options are required and all associated products to a required option are out of stock.

Bundle Product Stock Status is left as "In Stock" if either:

• All options are optional and at least one associated product is in-stock;
• Some options are required and at least one associated product in each required option is in-stock.

Product Owner approve: https://jira.corp.adobe.com/browse/ACP2E-262?focusedCommentId=30755998&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-30755998

Magento release version

Which Magento release(s) are affected by the content changes: 2.4, 2.3? Specify a patch release number, if applicable.

• Magento 2.4.x

Product editions

Is this update specific to a product edition: Magento Open Source only, Adobe Commerce only?

• No.

Is this update specific to an installed feature extension: B2B extension, other feature set (please, specify)?

• No.

Affected documentation pages

List HTML links for affected pages on https://docs.magento.com/user-guide/.

• https://experienceleague.adobe.com/docs/commerce-admin/catalog/products/types/product-create-bundle.html?lang=en