chore: Update selectors for contract approval modal

[chrisleewilcox]

Description

Update selectors for contract approve modal.
Renamed files and classes to relate more to contract approval.

Related issues

Relates: #7560

Manual testing steps

1. Go to this page...

Screenshots/Recordings

Private Zenhub Image

Before

After

Restructuring of selectors for ApprovalModal, now called ContractApprovalModal.

Pre-merge author checklist

• I’ve followed MetaMask Coding Standards.
• I've clearly explained what problem this PR is solving and how it is solved.
• I've linked related issues
• I've included manual testing steps
• I've included screenshots/recordings if applicable
• 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.
• I’ve properly set the pull request status:
  • In case it's not yet "ready for review", I've set it to "draft".
  • In case it's "ready for review", I've changed it from "draft" to "non-draft".

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.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (3022144) 34.97% compared to head (243e2dd) 34.98%.
Report is 7 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #7639   +/-   ##
=======================================
  Coverage   34.97%   34.98%           
=======================================
  Files        1030     1030           
  Lines       27379    27376    -3     
  Branches     2253     2253           
=======================================
  Hits         9577     9577           
+ Misses      17292    17289    -3     
  Partials      510      510           

see 1 file with indirect coverage changes

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[github-actions]

E2E test started on Bitrise: https://app.bitrise.io/app/be69d4368ee7e86d/pipelines/ca220a77-a489-48dc-a18a-de8b608a7bda
You can also kick off another Bitrise E2E smoke test by removing and re-applying the (Run Smoke E2E) label

[cortisiko]

changes look good, left a couple of comments.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[cortisiko]

✅ ✅ ✅ ✅