fix: Avoid excessive API saves (#39908)

## Description

When we load API editor, we notice an update call without any changes.
This happens because of the Headers and Params of the API editor adding
empty key value fields. These fields are removed by the
RestAPITransformer but the save keeps happening and we update the action
state without the empty fields. When we load the API again, the API
editor notices that no fields exists and adds them back again. This thus
lead to excessive saves of the API to the server without any benefit.

We will now check for this case before hand and avoid starting a save
when form adds these empty key value fields


## Automation

/ok-to-test tags="@tag.Datasource"

### 🔍 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/14075955172>
> Commit: b11f85f3ee716b2042331a55b670e292516755d6
> <a
href="https://internal.appsmith.com/app/cypress-dashboard/rundetails-65890b3c81d7400d08fa9ee5?branch=master&workflowId=14075955172&attempt=1"
target="_blank">Cypress dashboard</a>.
> Tags: `@tag.Datasource`
> Spec:
> <hr>Wed, 26 Mar 2025 05:59:23 UTC
<!-- end of auto-generated comment: Cypress test results  -->


## Communication
Should the DevRel and Marketing teams inform users about this change?
- [ ] Yes
- [ ] No


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **Bug Fixes**
- Refined API action updates by filtering out empty entries during save
operations, ensuring only valid data is processed and improving overall
data integrity.
  
- **New Features**
- Introduced a utility function to check for empty key-value pairs,
enhancing the logic for action property updates.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

app/client/src/sagas/ActionSagas.ts

@@ -129,7 +129,7 @@ import { convertToBaseParentEntityIdSelector } from "selectors/pageListSelectors
 import AppsmithConsole from "utils/AppsmithConsole";
 import { getDynamicBindingsChangesSaga } from "utils/DynamicBindingUtils";
 import { getDefaultTemplateActionConfig } from "utils/editorContextUtils";
-import { shouldBeDefined } from "utils/helpers";
+import { isEmptyKeyValue, shouldBeDefined } from "utils/helpers";
 import history from "utils/history";
 import { setAIPromptTriggered } from "utils/storage";
 import { sendAnalyticsEventSaga } from "./AnalyticsSaga";
@@ -1029,6 +1029,12 @@ export function* setActionPropertySaga(
     return;
   }
 
+  // The Rest Api editor adds empty key value pairs in the form for display.
+  // We don't need to save those empty key value pairs.
+  if (actionObj?.pluginType === PluginType.API && isEmptyKeyValue(value)) {
+    return;
+  }
+
   //skipSave property is added to skip API calls when the updateAction needs to be called from the caller
   if (!skipSave) yield put(updateAction({ id: actionId }));
 }

app/client/src/utils/helpers.tsx

@@ -44,6 +44,7 @@ import { klona as klonaLite } from "klona/lite";
 import { klona as klonaJson } from "klona/json";
 
 import { startAndEndSpanForFn } from "instrumentation/generateTraces";
+import type { Property } from "entities/Action";
 
 export const snapToGrid = (
   columnWidth: number,
@@ -1301,3 +1302,15 @@ export function getDomainFromEmail(email: string) {
 
   return final_domain;
 }
+
+export function isEmptyKeyValue(value: Property | Property[]): boolean {
+  if (Array.isArray(value)) {
+    return value.every((item) => isEmptyKeyValue(item));
+  }
+
+  if (typeof value === "object") {
+    if (value.key === "" && value.value === "") return true;
+  }
+
+  return false;
+}