## Description
- The dimension observer in auto layout was not triggering in the viewer
due to the fact that the observed container did not adapt to the child
contents.
- This worked in the editor because the document was not in the default
`position:auto` flow.
- The fix was to change the `position` property to `auto` and make sure
that the observed container has the height which `fit-content`.
Reference:
https://www.joshwcomeau.com/css/understanding-layout-algorithms/
#### PR fixes following issue(s)
Fixes#28556
#### Media
#### Type of change
- Bug fix (non-breaking change which fixes an issue)
## Testing
#### How Has This Been Tested?
- [x] Manual
- [ ] JUnit
- [ ] Jest
- [x] Cypress
## Checklist:
#### Dev activity
- [x] My code follows the style guidelines of this project
- [x] I have performed a self-review of my own code
- [x] I have commented my code, particularly in hard-to-understand areas
- [NA] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [x] I have added tests that prove my fix is effective or that my
feature works
- [x] New and existing unit tests pass locally with my changes
- [ ] PR is being merged under a feature flag
#### QA activity:
- [ ] [Speedbreak
features](https://github.com/appsmithorg/TestSmith/wiki/Guidelines-for-test-plans#speedbreakers-)
have been covered
- [ ] Test plan covers all impacted features and [areas of
interest](https://github.com/appsmithorg/TestSmith/wiki/Guidelines-for-test-plans#areas-of-interest-)
- [ ] Test plan has been peer reviewed by project stakeholders and other
QA members
- [ ] Manually tested functionality on DP
- [ ] We had an implementation alignment call with stakeholders post QA
Round 2
- [ ] Cypress test cases have been added and approved by SDET/manual QA
- [ ] Added `Test Plan Approved` label after Cypress tests were reviewed
- [ ] Added `Test Plan Approved` label after JUnit tests were reviewed
---------
Co-authored-by: Aishwarya UR <aishwarya@appsmith.com>