feat: limit input digits to 12 in useInputHandler

[amitabh94]

Description

This pull request adds a maximum digit limit of 12 in the useInputHandler function. It ensures that the input value is restricted to 12 digits and prevents any further input beyond that limit. This enhancement improves the user experience by enforcing a consistent and manageable input length.

Related issues

Fixes: STAKE-877

Manual testing steps

1. Go to Stake Input or Unstake Input page
2. Try to enter more than 12 digits using keypad on the screen
3. You should not be able to enter more than 12 digits

Screenshots/Recordings

Before

After

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 passed on Bitrise! ✅✅✅

Commit hash: b59d33d
Build link: https://app.bitrise.io/app/be69d4368ee7e86d/pipelines/59733a6e-a1bd-4fa2-be6c-64f2d105f16f

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

[Matt561]

LGTM!

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
56.2% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud