## Description
1. Make store updates atomic to ensure that undo operation works as
expected.
2. Add another guard to ensure that entire highlight is always visible,
esp along bottom and right edges of a layout.
#### Type of change
- Bug fix (non-breaking change which fixes an issue)
## Testing
#### How Has This Been Tested?
- [x] Manual
- [ ] JUnit
- [ ] Jest
- [ ] 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
- [ ] I have made corresponding changes to the documentation
- [x] My changes generate no new warnings
- [ ] 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
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **Refactor**
- Improved the layout saving process within the Anvil layout system.
- Enhanced the calculation of highlight positions in the layout editor.
- **Chores**
- Removed unused `SAVE_ANVIL_LAYOUT` action type and related sagas.
- **Bug Fixes**
- Fixed positioning calculations for layout highlights to ensure
accurate alignment and distribution.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
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