[Component amendment]: Equal heights pattern (additional options)

## Component/pattern to amend

[Equal heights pattern](https://vanillaframework.io/docs/patterns/equal-heights)

There are some aspects of equal height pattern that are requested in BAU tasks, but not possible in current pattern implementation.

For example:
- using links in headings of items (currently only `item.title_text` is supported)
- option to disable "cover" on images (currently we can only add highlight or change aspect ratio)

To achieve above features developer can use the [equal heights row component](https://vanillaframework.io/docs/patterns/equal-height-row) directly, but it is more cumbersome and prone to errors. If the above features are considered edge cases (not to be covered by the pattern), maybe at least we could update the pattern documentation, to mention the direct use of component in such cases. Ideally Figma designs provided for BAU tasks could make this distinction as well.

## Visual

## Context

Web developer not being able to complete BAU task with Vanilla patterns.

Start with the Equal heights pattern documentation and compare it with the linked equal-height row component. Determine whether linked headings and disabling image cover should be supported by the pattern; if not, document the direct component approach and clarify the distinction in the pattern guidance.

Written by the indexing model from the issue text.