fix: "Dapp viewed Event @no-mmi is sent when refreshing da..." flaky test

[hjetpoluru]

Description

In this test, there are two different requests for the "Dapp Viewed" event: one with the property is_first_visit: true and the other with is_first_visit: false. However, the current mock setup does not differentiate between these two requests.
To ensure that both "Dapp Viewed" event requests are properly handled, we need to create two separate mocks has been created.

Special thanks to @seaona for her thorough analysis and understanding of this tricky flaky test. Her insights and proposed solution were instrumental in resolving this issue. All credit for identifying and addressing this problem goes to her.

Related issues

Fixes:
#24655
#24651
#26899

Manual testing steps

Run the dapp viewed spec locally or in codespace using below commands against chrome browser:
yarn
yarn build:test:webpack
ENABLE_MV3=false yarn test:e2e:single test/e2e/tests/metrics/dapp-viewed.spec.js --browser=chrome

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
• 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 format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). 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.

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[sonarcloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[metamaskbot]

Builds ready [4c8a9a0]

• builds: chrome, firefox
• builds (beta): chrome
• builds (flask): chrome, firefox
• builds (MMI): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Background Module Init Stats
• mv3: UI Init Stats
• mv3: Module Load Stats
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• code coverage: Report
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5, 6
  • common: 0, 1, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9
  • content-script: 0
  • offscreen: 0
  • ui: 0, 1, 10, 11, 12, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (1863 ± 67 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	312	2095	1792	367	176
		domContentLoaded	1615	2056	1837	132	64
		load	1647	2122	1863	140	67
		domInteractive	19	235	56	46	22

Bundle size diffs

• background: 0 Bytes (0.00%)
• ui: 0 Bytes (0.00%)
• common: 0 Bytes (0.00%)

[seaona]

nice!!

[DDDDDanica]

LGTM !