## Description
After perf updates made in PR
https://github.com/appsmithorg/appsmith/pull/36118/files, Page data DB
fetch call was getting triggered twice, one for PAGES_SPAN and one for
ACTIONS_SPAN. With this PR, we have replaced that a single Mono which is
being cached.
More details:
https://theappsmith.slack.com/archives/C024GUDM0LT/p1725960912325389
Fixes #`Issue Number`
_or_
Fixes https://github.com/appsmithorg/appsmith/issues/36243
> [!WARNING]
> _If no issue exists, please create an issue first, and check with the
maintainers if the issue is valid._
## Automation
/ok-to-test tags="@tag.Sanity"
### 🔍 Cypress test results
<!-- This is an auto-generated comment: Cypress test results -->
> [!TIP]
> 🟢🟢🟢 All cypress tests have passed! 🎉🎉🎉
> Workflow run:
<https://github.com/appsmithorg/appsmith/actions/runs/10808901838>
> Commit: d36df4cb300653a51d10a09b3315aaa114b68034
> <a
href="https://internal.appsmith.com/app/cypress-dashboard/rundetails-65890b3c81d7400d08fa9ee5?branch=master&workflowId=10808901838&attempt=1"
target="_blank">Cypress dashboard</a>.
> Tags: `@tag.Sanity`
> Spec:
> <hr>Wed, 11 Sep 2024 09:49:39 UTC
<!-- end of auto-generated comment: Cypress test results -->
## Communication
Should the DevRel and Marketing teams inform users about this change?
- [ ] Yes
- [x] No
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- **Performance Improvements**
- Enhanced the page loading process by implementing a caching mechanism
for retrieving branched page data, potentially reducing database calls
and improving overall application performance.
- Streamlined the retrieval logic for branched pages, ensuring
consistent execution regardless of the base page ID state.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: “sneha122” <“sneha@appsmith.com”>