feat: update push notification API request/response

[Prithpal-Sooriya]

Description

Push Notification API update. We now support a platform field with the registration tokens.
This allows better push notification support between our different platforms.

Related issues

Fixes: N/A

Manual testing steps

This has no impact. The notification feature is not released yet.

Screenshots/Recordings

Before

After

Pre-merge author checklist

• I’ve followed MetaMask 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.

[matteoscurati]

LGTM :) (just a nit comment about the new RegToken type)

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 9 lines in your changes are missing coverage. Please review.

Project coverage is 67.37%. Comparing base (4cf7e80) to head (ced01f5).

Files	Patch %	Lines
...s/push-platform-notifications/services/services.ts	0.00%	9 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #24542      +/-   ##
===========================================
- Coverage    67.37%   67.37%   -0.00%     
===========================================
  Files         1289     1289              
  Lines        50220    50222       +2     
  Branches     13005    13007       +2     
===========================================
  Hits         33835    33835              
- Misses       16385    16387       +2     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[metamaskbot]

Builds ready [ced01f5]

• 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, 2, 3, 4, 5, 6, 7, 8
  • content-script: 0
  • ui: 0, 1, 10, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (1109 ± 553 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	64	127	95	17	8
		domContentLoaded	9	26	13	4	2
		load	51	2623	1109	1153	553
		domInteractive	9	26	13	4	2

Bundle size diffs [🚨 Warning! Bundle size has increased!]

• background: 84 Bytes (0.00%)
• ui: 0 Bytes (0.00%)
• common: 0 Bytes (0.00%)