feat: Change copy from estimated to network fee (#26859)

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## **Description**

Update copy and corresponding tests.

[![Open in GitHub
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## **Related issues**

Fixes: MetaMask/MetaMask-planning#3063

## **Manual testing steps**

1. Go to this page...
2.
3.

## **Screenshots/Recordings**

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before and after of your change. -->

### **Before**

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### **After**

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## **Pre-merge author checklist**

- [ ] I've followed [MetaMask Contributor
Docs](https://github.com/MetaMask/contributor-docs) and [MetaMask
Extension Coding
Standards](https://github.com/MetaMask/metamask-extension/blob/develop/.github/guidelines/CODING_GUIDELINES.md).
- [ ] I've completed the PR template to the best of my ability
- [ ] I’ve included tests if applicable
- [ ] I’ve documented my code using [JSDoc](https://jsdoc.app/) format
if applicable
- [ ] I’ve applied the right labels on the PR (see [labeling
guidelines](https://github.com/MetaMask/metamask-extension/blob/develop/.github/guidelines/LABELING_GUIDELINES.md)).
Not required for external contributors.

## **Pre-merge reviewer checklist**

- [ ] I've manually tested the PR (e.g. pull and build branch, run the
app, test code being changed).
- [ ] I confirm that this PR addresses all acceptance criteria described
in the ticket it closes and includes the necessary testing evidence such
as recordings and or screenshots.

test/e2e/tests/confirmations/transactions/shared.ts

@@ -226,13 +226,13 @@ export async function toggleAdvancedDetails(driver: Driver) {
 }
 
 export async function assertAdvancedGasDetails(driver: Driver) {
-  await driver.waitForSelector({ css: 'p', text: 'Estimated fee' });
+  await driver.waitForSelector({ css: 'p', text: 'Network fee' });
   await driver.waitForSelector({ css: 'p', text: 'Speed' });
   await driver.waitForSelector({ css: 'p', text: 'Max fee' });
 }
 
 export async function assertAdvancedGasDetailsWithL2Breakdown(driver: Driver) {
-  await driver.waitForSelector({ css: 'p', text: 'Estimated fee' });
+  await driver.waitForSelector({ css: 'p', text: 'Network fee' });
   await driver.waitForSelector({ css: 'p', text: 'L1 fee' });
   await driver.waitForSelector({ css: 'p', text: 'L2 fee' });
   await driver.waitForSelector({ css: 'p', text: 'Speed' });

test/integration/confirmations/transactions/contract-interaction.test.tsx

@@ -271,7 +271,7 @@ describe('Contract Interaction Confirmation', () => {
 
     const editGasFeesRow =
       within(gasFeesSection).getByTestId('edit-gas-fees-row');
-    expect(editGasFeesRow).toHaveTextContent('Estimated fee');
+    expect(editGasFeesRow).toHaveTextContent('Network fee');
 
     const firstGasField = within(editGasFeesRow).getByTestId('first-gas-field');
     expect(firstGasField).toHaveTextContent('0.0084 ETH');

ui/pages/confirmations/components/confirm/info/approve/__snapshots__/approve.test.tsx.snap

@@ -190,7 +190,7 @@ exports[`<ApproveInfo /> renders component for approve request 1`] = `
         <p
           class="mm-box mm-text mm-text--body-md-medium mm-box--color-inherit"
         >
-          Estimated fee
+          Network fee
         </p>
         <div>
           <div

ui/pages/confirmations/components/confirm/info/base-transaction-info/__snapshots__/base-transaction-info.test.tsx.snap

@@ -233,7 +233,7 @@ exports[`<BaseTransactionInfo /> renders component for contract interaction requ
         <p
           class="mm-box mm-text mm-text--body-md-medium mm-box--color-inherit"
         >
-          Estimated fee
+          Network fee
         </p>
         <div>
           <div
@@ -593,7 +593,7 @@ exports[`<BaseTransactionInfo /> renders component for contract interaction requ
         <p
           class="mm-box mm-text mm-text--body-md-medium mm-box--color-inherit"
         >
-          Estimated fee
+          Network fee
         </p>
         <div>
           <div
@@ -950,7 +950,7 @@ exports[`<BaseTransactionInfo /> renders component for contract interaction requ
         <p
           class="mm-box mm-text mm-text--body-md-medium mm-box--color-inherit"
         >
-          Estimated fee
+          Network fee
         </p>
         <div>
           <div

ui/pages/confirmations/components/confirm/info/shared/edit-gas-fees-row/__snapshots__/edit-gas-fees-row.test.tsx.snap

@@ -14,7 +14,7 @@ exports[`<EditGasFeesRow /> renders component 1`] = `
       <p
         class="mm-box mm-text mm-text--body-md-medium mm-box--color-inherit"
       >
-        Estimated fee
+        Network fee
       </p>
       <div>
         <div

ui/pages/confirmations/components/confirm/info/shared/edit-gas-fees-row/edit-gas-fees-row.tsx

@@ -44,7 +44,7 @@ export const EditGasFeesRow = ({
       alertKey={RowAlertKey.EstimatedFee}
       ownerId={transactionMeta.id}
       data-testid="edit-gas-fees-row"
-      label={t('estimatedFee')}
+      label={t('networkFee')}
       tooltip={t('estimatedFeeTooltip')}
     >
       <Box

ui/pages/confirmations/components/confirm/info/shared/gas-fees-details/__snapshots__/gas-fees-details.test.tsx.snap

@@ -14,7 +14,7 @@ exports[`<GasFeesDetails /> renders component for gas fees section 1`] = `
       <p
         class="mm-box mm-text mm-text--body-md-medium mm-box--color-inherit"
       >
-        Estimated fee
+        Network fee
       </p>
       <div>
         <div

ui/pages/confirmations/components/confirm/info/shared/gas-fees-section/__snapshots__/gas-fees-section.test.tsx.snap

@@ -20,7 +20,7 @@ exports[`<GasFeesSection /> renders component for gas fees section 1`] = `
         <p
           class="mm-box mm-text mm-text--body-md-medium mm-box--color-inherit"
         >
-          Estimated fee
+          Network fee
         </p>
         <div>
           <div