FIO-8512: fixed an issue where conditionally visible data inside layout components inside editGrid/dataGrid is unset on server side

[TanyaGashtold]

Link to Jira Ticket

https://formio.atlassian.net/browse/FIO-8512

Description

What changed?

• fixed an issue where compPath is not defined correctly inside getComponentActualValue, since layout components are considered for path calculation. Added logic that takes only closest input component for path calculation;
• fixed an issue where wrong component is passed as an argument to getComponentActualValue inside checkSimpleConditional. Before the conditional component was passed together with path of the condition component, I have changed it to pass the condition component (that is on which the visibility of the component depends).

How has this PR been tested?

Manually + test added

Checklist:

• I have completed the above PR template
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (if applicable)
• My changes generate no new warnings
• My changes include tests that prove my fix is effective (or that my feature works as intended)
• New and existing unit/integration tests pass locally with my changes
• Any dependent changes have corresponding PRs that are listed above