chore: Implements push notifications FCM support

[Jonathansoufer]

Description

This PR implements support to FCM (Firebase Cloud Messaging) on both iOS and Android on mobile.

Related issues

Fixes: NOTIFY-1219

Manual testing steps

1. Go to Settings --> Notifications --> Enable
2. Open a separated device (or extension) repeat the process above
3. Do any transaction between the two clients/devices
4. Leave the transaction recipient open to see it in Foreground
5. Put app in background to see a native notification

Screenshots/Recordings

Before

After

PushNotifications.mov

Pre-merge author checklist

• I’ve followed MetaMask Contributor Docs and MetaMask Mobile 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.

[github-actions]

Bitrise

❌❌❌ pr_smoke_e2e_pipeline failed on Bitrise! ❌❌❌

Commit hash: 5bbb60b
Build link: https://app.bitrise.io/app/be69d4368ee7e86d/pipelines/f85b0638-a955-4f7c-ace3-2a7b572d10b1

Note

• You can kick off another pr_smoke_e2e_pipeline on Bitrise by removing and re-applying the Run Smoke E2E label on the pull request

Tip

• Check the documentation if you have any doubts on how to understand the failure on bitrise

[sonarqubecloud]

Quality Gate failed

Failed conditions
59.9% Coverage on New Code (required ≥ 60%)

See analysis details on SonarCloud